good at後面加什麼時態

be good at加名詞,介詞賓格或名詞性短語,很重要的就是如接動詞要加動詞的ing形式.

如I am good at teaching English.I am good at football.

be good at後面要接名詞、動名詞或名詞/動名詞短語，

例句：John is good at swimming and basketball.

It is important that we try to be good at everything we do.

I have a shrill voice. I'll never be good at singing.

I am good at chess, but not checkers.