1.用buy+某人+某物2.buy+某物for某人各造两个英语句子

My father bought me a bike yesterday.= My father bought a bike for me yesterday.
I will buy my mother a birthday present,= I will buy a birthday present for my mother.
I usually buy some cards for my teachers on Teachers's Day.= I usually buy my teachers some cards on Teachers' Day

He bought me a bike .
My parents bought a present for me.