Questions & Answers about Wir wollen alles sehen.
Why is it alles here and not alle?
alles means "everything" (referring to things, actions, or a general situation), while alle means "everyone" or "all" (when referring to a specific group of people or countable things). Since the sentence means "We want to see everything," we use the pronoun alles.
What case is alles in this sentence?
It is in the accusative case because it is the direct object of the verb sehen (to see) — it is the thing being seen. Luckily, for the word meaning "everything," the nominative (subject) and accusative (object) forms are exactly the same: alles.
Why is sehen at the very end of the sentence?
This is a great reminder of how modal verbs work! The sentence uses the modal verb wollen (to want). In German, the conjugated modal verb takes the second position in the sentence, which pushes the main action verb (sehen) all the way to the end in its infinitive (dictionary) form.