Das Vollverb be

Langformen (I am, you are, he is, …) und Kurzformen (I'm, you're, he's, ...), verneinte Langformen (I am not, you are not, he is not, … und Kurzformen (I'm not, you aren't, he isn't, …), Entscheidungsfragen (Is he hungry?), Kurzantworten (Yes, he is.), Befehlsform (Be careful.)