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.