"The man cannot tie a necktie" is marked wrong

Doesn't 맵니다 also mean "put on"? So that "The man cannot put on a tie" might also be a correct translation?

That's an excuse so his woman ties it for him

"The man can't tie a necktie."is correct.

How much of a man is he, then?

넥타이를 Neck Tie

Can't "cannot" be translated as "ㄹ 수 없다" too?

I wrote "A man can't tie a tie." I wonder which word was wrong, "A" for "the," or "can't" for "cannot."