Two-Way Prepositions Explained

Hello everyone,

and welcome. Do you know the series on prefix verbs? Man, I don’t know.. maybe it’s just me, but it feels really really last season. Like… I’m sooo ready for something new. Some cool, new, exciting sexy series on something.
And you know what?!?! That series is coming and it’s gonna be the bestest, most usefullest series ever. Get ready for:

CSI:Prepositions 

Shabammmm!!!! Epic.
Well, okay the actual title is German Prepositions Explained but yeah, it’s essentially your dream coming true because in this series, we’ll look at the German prepositions one at a time and explain the crap out of them. You will be a preposition master after this series.
And if you’re now like “Awesome. What’s a preposition again?” I’m talking about auf, ab, zu, aus and so on.
Now, filming for the series is still going so, so we won’t have an episode today just yet. Instead, we’ll do a little featurette about

Two way prepositions

We’ll come across this stuff again and again, it confuses many learners and the explanations that are a little off. Not really wrong, just… off.
So, are you ready to take a look at the systematics behind the infamous German two-way prepositions?
Cool.

German has 4 cases. That wouldn’t be a problem by itself. I have a deodorant; somewhere. The problem is that German really really likes its four cases and it rubs them in our faces all day.  And prepositions offer no respite.
It’s not enough that there are many of them and they don’t line up with their English counterparts. No. German just can’t help it and is like “Oh, uhm, and don’t forget… after each preposition has to come a case.”
For some prepositions, this case is set in stone. No exceptions. Like, für for instance will ALWAYS be followed by accusative, no matter what.

But there’s a group of prepositions which can be followed by two cases – accusative and dative, to be precise. Luckily, there’s a pretty consistent system for which case to use and that has to do with what we’re trying to say.
If our message is  about a fixed location, or in other words,  if we’re answering an imaginary “Where is X (happening)?” question, we’ll mark that by using dative. If our message is about the question “Where is X headed?”, then we’ll use accusative.
So, it’s NOT simply about whether there’s movement, as many sources suggest. It’s about our message.
Example time.

• Die Tasse steht auf dem Tisch.
• The cup is standing on the table.
• ▶
  

• Die Tasse fällt auf den Tisch.
• The cup falls on the table.
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In the first example, we’re talking about where the cup currently is; it is stationary and we’re marking that with Dative. In the second example, the current position of cup doesn’t really matter. It is somewhere mid air. What we want to talk about is where the cup is headed; it’s destination. And we’re marking that with Accusative.
Now, this example was pretty clear because to be is stationary in itself, while fallen is clearly a movement. And that’s how many sources frame it.
But that’s NOT the core of it.

The Message Makes the Case

Check out this example:

• Ich jogge im (in dem) Park.
• Ich jogge in den Park.
  
  ▶

   

Here, we have the same verb in both examples and it is clearly a movement verb. And yet, we have used Dative in the first version? Isn’t that wrong then?
No, the Dative tells us that whatever happens in that sentence (the jogging) happens at a fixed location: in the park. So, I’m in the park at the beginning of my run, I’m in the park at the end of it. My location relative to park doesn’t change throughout my run.
The Accusative in the second example on the other hand, the park is the destination of my run. I’m not there before the run, I am there after.
So, just because the verb is a movement verb doesn’t mean the case is clear.
And same goes the other way around.

• Ich schreibe auf dem Tisch.
• Ich schreibe auf den Tisch.
  
• ▶
  

Schreiben means to write, so the verb itself is not really a movement verb, this time. But there’s nothing wrong with giving writing a direction either. In the first example, the Dative marks the table as  the location where my writing happens. Maybe I sit there and write a letter to someone. In the second example, I’m also at the table writing, but the Accusative marks that the main message this time is that the table is the destination of my writing. I am literally writing onto the table.
Cool. Now, one more example, again with twist.

• Thomas schläft auf der Couch.
• Thomas schläft auf die Couch.
  
  ▶

   

   

   

   

The twist is pretty obvious this time :). The second version doesn’t work.
And the crucial part is that it’s not because the grammar is wrong or anything but simply because it makes absolutely no sense.
You can give sleeping a direction in time …

• Ich schlafe ins neue Jahr.
• I sleep into the new year.
• ▶
  

Here, the accusative is fine. The new year is the destination of our sleeping. But unless you’re a poet or something you CAN’T give sleeping a direction in space…

• Traumversunken schlafe ich nach Berlin.
• Sunk in dreams, I sleep to Berlin… meeeeeehhhhhhh, maybe
  
• ▶
  

• “I was sleeping.”
  “Cool, where to?”
  “From the kitchen onto the couch.”… uh.. NOPE

That doesn’t work in English either. In fact, I’d be curious, if there’s any language at all on the planet where you can give sleeping a direction in space (let me know in the comments if you can in your language).
But yeah… so the crossed out example with the accusative  would be called wrong by your teacher. The crucial thing to understand here, is that it’s NOT wrong because of grammar. It’s NOT wrong, because sleeping is not a movement verb, it’s NOT wrong because it’s intransiblahblah… it is wrong because it sounds wrong and it sounds wrong because it is nonsense.

So, the bottom line of all of this is that the case choice we do for the two-way prepositions is not just some annoying bit of grammar. Two-Way Prepositions are a way to get our message across. Using Accusative answers to  “where’s it headed”, using Dative to “where is it (happening)” . And  making this distinction explicit is a common theme of the German language. German is really anal about spatial information.
The proper choice depends on what you want to say and if something doesn’t work then it doesn’t work because it’s nonsense. And it’s most likely nonsense in other languages, too.
Cool.
Now some of you are probably on the edge of their seat now asking the following: “But, but Emanuel, EMAAAANUELLL… what about stuff like warten auf? How do I know which case to use for those?”

That’s a very good question. German has loads of sort of fixed combos between verbs and prepositions that don’t really have anything to do with space or time. And if a verb comes with a two-way preposition, many learners get confused about which case to pick.
We’ll talk about those combos a lot in the individual articles for the prepositions but I can give you a trend right away:

Fixed, abstract verb-preposition combos with two-way preps
tend to take accusative

The local notion of the Dative is very very strong and in many instances, it will sound like you’re actually talking about a location. Here’s the obligatory unicorn example

• Ich warte auf dem Einhorn.
• I’m waiting on top of the unicorn.
  
  

• Ich warte auf das Einhorn.
• I’m waiting for the unicorn.
  
  ▶

   

When you think about it, the anticipation that is at the heart of warten is in some way like a directed movement. My waiting has a goal, a target. But this is the stuff that we’ll do in the series, so lots of theory fun ahead of us :).
Cool.

So now that we know the how and what about two-way prepositions, all that’s missing are the prepositions themselves. Here they are

vor, hinter, in, auf, unter, über, neben, an, zwischen

And there’s a nice way to check keep them in mind without keeping them in mind. Just imagine a lighter and a coffee cup. If you can position these two items so that they “show” the preposition without moving or theater, then it’s two-way.
There’s really cool, simple way to quickly check if a preposition is two-way or not. If you can “arrange” a cup and a lighter so they “show” the preposition without moving, then it’s two-way.
It doesn’t really work for zwischen, to be honest, but let’s just think of that as poetic license. The lighter can be zwischen the table and the cup.

Cool. Now theory is all well and good, but practice makes perfect. So to wrap this up, let’s do a little work out.

Exercise

I’ll give you a few sentences and mark the case and you have to decide whether it is a correct sounding sentence and what it means. And if you want, you can also think about whether the other choice would work, too. Here’s an example:

• Ich lege das Buch auf dem Tisch. 

We’re using Dative, so auf dem Tisch is marked as the location where the rest of the sentence takes place. That means, that I am laying the book while being on the table. And that doesn’t make too much sense, right. So this one would be “wrong” and Accusative would be the proper choice here, because it would mark the table as destination of my laying.

So here you go… and be warned, these are pretty tricky :)

1. Ich trinke in meinen Geburtstag.
   

• Ich setze mich in der U-Bahn.
  

• Die Fliege schwimmt in die Suppe.
  

• Maria fährt neben dem Jogger.
  

• Ich lese in das Buch.
  ▶
• Ich tanze auf der Brücke.
  

• Ich trinke in die Küche.
  

• Ich werfe im Wasser.
  ▶
• Ich lese etwas in die E-Mail.
  

• Der Bus fährt im Winter nicht.
  ▶
• Das Team liegt hinter den Zeitplan.
  ▶
• Die Werbung kommt vor dem Video.
  

• Marias Haar hängt in die Suppe.
  ▶
• Thomas kotzt vor der Bar.
• ▶
  

And here are the solutions – with a little explanation, so you actually know what’s going on :)

1. Correct. Dative wouldn’t work because the idiomatic preposition would be “an” for a expressing that something happens on a fixed day
2. Textbook explanations suggest that it’s wrong but it isn’t. You can sit down while being in the subway. Accusative would work, too.
3. Unless there’s a canal leading into the soup that the fly could swim along, making the soup the destination of the fly’s swimming makes little to no sense :)
4. It’s correct and Accusative would work as well.
5. It’s weird sounding, to say the least. You could understand it as giving the book a little probe reading, but reading in the book would be done with Dative.
6. Correct, and Accusative would work as well.
7. This doesn’t make any sense. You can’t give drinking a location in space. Dative would be correct here.
8. Correct, and Accusative would work as well.
9. It’s similar to number 5 but this time, it works because you’re reading something into the mail that isn’t there.
10. It’s completely correct. Accusative would only make sense if it’s a lyrical way to say that the bus drives to the far north (where it is winter)
11. This is nonsense. Lying is one of those verbs that you cannot give a direction to. When you’re lying, you’re 100% stationary.
12. It’s fine. We’re told where the ad is. With accusative it would mean that we’re talking about where to put the ad.
13. It’s fine and Dative would work as well. The two are almost the same. The accusative just puts a little focus on the hair reaching into the soup, while Dative is just a plain description of where it is.
14. It’s fine and Accusative would work as well.

So how’d you do? How many did you get correct? Was it difficult? I bet you’re having a lot of questions about this now so let’s talk about it in the comments.
And of course, if you have other questions about any of this or if you want to try out some more examples leave a comment too.
So that’s it for today. This was our look at two-way prepositions and I hope the whole thing is a little clearer now. The case choice is a way to mark something as either destination or location for an event and the difference between right and wrong is mainly what makes sense. And with this we’re now well prepared for the upcoming series on prepositions :). It’s not gonna start next week, but it is coming and it is going to be epic.
I hope you liked it today, I wish you a schöne Woche und bis nächstes Mal.