Basic Tenses with be

This page shows the basic tenses with the irregular verb be , including the following structures:

• affirmative or positive (+)
• negative (-)
• interrogative or question (?)

The basic structures are:

But for simple past and  simple present tenses, the structures are not the same. In fact, they are even easier. There is no  auxiliary verb. Here are the structures:

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

 And here is the result:

In the following table, we see be  conjugated in all persons in the affirmative for 12 basic tenses:

sources : Original Link