That mean not or
opposite (7)
that mean under or
below (2)
that mean before
(2)

this would be in the imperative mood. it is a category of verb forms that are used to express orders,instructions,commands or requests.

write a five paragraph essay, you were taught to have three body paragraphs. a university essay is more flexible than that, depending on its length and on what it is trying to say. a short university essay may have three body paragraphs, but it may have more.