What are the continuous tense, past tense and past participle of is, are and am? Because the answers were different last time, so ask again Isn't being progressive?

What are the continuous tense, past tense and past participle of is, are and am? Because the answers were different last time, so ask again Isn't being progressive?

Is / are / AM has no independent progressive form
Past tense: is was / are were / AM was
Past participle: is / are / am

When to use the be verb (is) and the auxiliary verb (do)? (including the difference) and when not to use them?
Their use is too common. I feel a little vague. Do you have any tips to remember? It's better to have more examples to let me understand more thoroughly,

1. Distinguish the meaning of "is" from "is" girl.do Can you do it for me? 2

Is there any sentence that uses the principle of proximity to determine the singular and plural

either… or… 、 neither… nor… 、 not only … ,but also… It's all the principle of proximity

A question about the singular and plural predicate of there be
Generally speaking, the predicate form of there be sentence pattern should adopt the principle of proximity, such as there is a pencil and two pens on the desk and there are two pens and a pencil on the desk, It is said in the book that if the two are the whole, the singular will be used; if they are single, the plural will be used
1.there is a knife and fork missing.
2.there are a light bulb and a screwdriver in the drawer.
There is no doubt that the first sentence is right, but the second sentence makes me confused. Isn't there be based on the principle of proximity? Am I wrong or is the book wrong?

there are a light bulb and a screwdriver in the drawer.
The book is absolutely wrong
I don't know what version of the new concept you are looking at. Alas, the quality has been reduced
A few days ago, someone asked me a question. The book is wrong. I feel dizzy