This page shows the basic tenses with the verb be. It includes the affirmative or positive form (+), the negative form (-) and the interrogative or question form (?).

The basic structure is:

But for simple past and simple present tenses, the structure is not the same. In fact, it's even easier. There is no auxiliary verb. Here is the structure:

These are the forms of the main verb be that we use to construct the tenses:

In the following table, we see be conjugated for 12 basic tenses.