中考英语语法：动词不定式做宾补和分词做宾补的区别

Look at, see, watch, hear, find, feel 等感官动词后接不定式做宾补时，表示动作的全过程已结束，后接分词做宾补时，表示动作的一部分正在进行。

I saw him cross the road.

I saw him crossing the road

I heard someone enter the room.

I heard someone singing.

I felt something hit me on the back.

Can you feel the train slowing down?