Writing German in the Future Perfect Tense (Futur II Perfekt )
What Is the Future Perfect Tense?
This is a tense that we don't use very often, but the need does come up from time to time. In English, we use the future tense all the time: I will see you later; we will go to the store in a while; you'll regret this!
Future perfect is a little different, though. In English, the perfect tenses describe something that has been, is, or will be finished at a certain point in time. Present perfect (Perfekt in German) refers to a condition that is ongoing and has been for a while:
We have been sitting here for two hours.
Future perfect refers to something that isn't true yet, but will be before something else happens. Let's say that you haven't gone shopping yet, but by the time you cook dinner, you will have food in the house. Here's a way to say this in the future perfect:
Before dinner, I will have gone to the store and picked up some asparagus.
The helping verbs are "will have," and the action verbs are "gone" and "picked."
So How Do I Say That in German?
Remember that, in German, the helping verb that means "will" is werden. If you want to say, "we will buy cheese tomorrow" in German, it looks like this:
Wir werden morgen Käse kaufen.
But let's say that you need that cheese before you do something else. Maybe you have some friends coming over for a cookout, and you need to go shopping first. Your friend calls to see if you have everything ready, and you say, "Don't worry, we'll have bought the cheese before you get here." The future perfect tense helps you write about two events in the future and tell the reader which one will happen first.
And so look at this English sentence:
We'll have bought the cheese before you get here.
In German, to write the future perfect, the helping verb werden works just like in the future tense. The helping verb haben (or sein, if it's an intransitive verb) goes at the end of the clause, and the participle goes right before it. Here's the sentence above, translated into German:
Wir werden den Käse gekauft haben, bevor du herkommst.
Note the difference between future (Futur) and future perfect (Futur II). In the future tense, the main verb appears at the end of the clause, in infinitive form; in the future perfect tense, the main verb appears in participle form, and is second-to-last in the clause, before either haben or sein, depending on the main verb.
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