He is gone. What tense is being used? Is that simple present tense?

Goodman wrote:

Yes, you may say that. However, [he is gone] is more of an idiomatic expression than grammatical in my opinion which merely means one of the followings;

1-“He is no loner here”.

2-“He has passed on, meaning dead”

3-“He doesn’t exist in my life”

If you examine the grammatical structure of [he is gone], it’s equivalent to “I am tired”, “he is interested” and “she is depressed”. All the highlighted words are past participles used as adjectives because of the state of being made to feel a certain emotion or an action is being acted upon.

I am so glad Paul is gone. Working with him was such misery.- In this context, it fit the  meaning of # 1 in the above.

[Gone] is an adjective here, whether he was made to leave, fired or voluntarily resigned, [Gone] signifies his absence.

CalifJim wrote:

Absolutely not!  to go is an intransitive verb.  Such verbs have no passive forms.  Only transitive verbs can be placed in passive voice.

gone is a past participle used as an adjective.  The sentence as a whole is in present tense.

Centuries ago, the present perfect tense of to go used to be formed with the auxiliary to be instead of the auxiliary to have.  Thus, centuries ago, is gone was the present perfect tense of to go. 

In modern English, is gone is a present tense form of to be with the adjectival past participle gone, and the present perfect is has/have gone.