Where to place the negative adverb, not. In English we do not use the negative adverb not with the common verb form, but when we use not in a sentence, we use the auxiliary do. For example, we do not say:

Only in poetry do we use such expressions as these. In ordinary English, we say:

We often use here and there incorrectly after the words this and that. We often use here and there incorrectly after the words this and that.] For example, we say:

This should be: This lesson is shorter than that one.

These sentences should read: