had to 是什么時態

　　He had to go to the hospital for treatment.

　　他不得不去醫院接受治療。

　　My car had to have a new engine.

　　我的汽車得換一個新發動機。

　　They had to take a 20% cut in pay.

　　他們不得不接受減薪20%。

　　He had to go to hospital for treatment.

　　他不得不去醫院接受治療。

　　We had to take out a second bond on the property.

　　我們得申請第二按揭以購買這個房產。