suddenly後面跟什麼

後面跟的是一般過去式或者是一般現在時，例如：

1、They suddenly became aware of people looking at them.他們突然意識到有些人在瞧着他們。

2、Suddenly it clicked ─ we'd been talking about different people.我們突然領悟到原來我們談論的不是同一個人。