I have just finished my homework. Having said that, In American English it’s acceptable to use” just” with simple past as well as with present perfect to express that something recently happened. I just finished my homework.

Have just completed meaning?

“I just completed the test.” Means, I just finished it a moment ago. It says nothing about the quality or quantity of the finished product.

Can we say Im finished?

You should probably not say “I am finished” in most situations as this implies that your life is at an end. It is the “I” that is finished – i.e. close to death or some sort of catastrophic failure. Grammatically, both are correct, but they are linguistically different.

Has just VS have just?

“Has just” is the Present Perfect tense and “Had just” is the Past Perfect tense. This shows something started in the recent past and is ending in the present.

Have had just or have just had?

Simply, one is present tense and one is past. EDIT: More specifically, “have just” and “had just” aren’t simple past tenses. They’re both compound, and they often imply connection between an event and a point of reference. When you say “have just” it implies that the event in reference affects the present state.

Is I have finished correct?

The verb to finish can be used with the auxiliary ‘to have’ or ‘to be’: ‘I have finished’ (the auxiliary verb ‘have’) as well as I am finished (auxiliary verb to be) (predominantly American). Both have the same meaning. I am finished with the work you gave me. I have finished, I have completed the work you gave me.

Is Finished correct grammar?

The past participle (“finished”) here either functions as an adjective that modifies the noun “action” in this sentence or it is part of the verb. The former feels right to me, but either way, “finished” is correct. The correct form is the past participle “finished”.