This sentence is correct?

Question

( I can aloof at times especially when people don't know me. )

I need grammar and if the word aloof make sense with the sentence.

Answer 1

The sentence needs a verb.  Do you mean "I can be aloof at times, especially when people don't know me."?  If so, you might reword the sentence:  "When people don't know me, they often think I am aloof." or "I can be aloof at times, especially if I don't know someone."

Answer 2

"Aloof" is an adjective, not a verb. If you add "be" or "seem" before it and a comma after "times," the grammar will be correct.

"I can seem aloof at times, especially when people don't know me."

Answer 3

Aloof does not really make sense in this sentence. Aloof means that your mind is somewhere else, not serious or to be distant (physically or mentally).

" I may seem ------ at times especially when people don't know me."

You could insert 'Aloof' here, if it is truly what you are intending to say.