study，give怎样加s，加ed，加ing？

study,studying, studies, studied, studied
give,giving, gives, gave, given

My sister studies law at university.
我姐姐在大学读法律。

I'm studying for my final exam.
我正在为期末考试复习(学习)

I studied French in high school.
我在高中时学过法语。

Have you ever studied biology?
你有没有学过生物?

I gave her a pencil case for her birthday.
她生日我给了她一个铅笔盒。

I wasn't given anything for my birthday.
我生日什么都没有得到。

studies,studied,studying.
gives,gived,giving.