Not once in the last month has he asked for leave.

[嘟嘟嘟嘟]

Not once in the last month has he asked for leave.

Is it right in the sentence to use the present perfect tense, since the time for the act is "in the last month"?
Thanks for help!

 

[MikeNewYork]

That works. "Did he ask" also works.

 

[Polyester]

Why "has he" is correct?
Why not "he has"? I meant the word of position.

 

[Matthew Wai]

Because it is an inverted sentence, which translates as “倒装句” in your native language.

Not a teacher.