感官动词和使役动词的宾语补足语必须用动词吗?

感官动词和使役动词的宾语补足语不一定用动词，也可以用不定式等形式。本回答被网友采纳

那必须的，毕竟感官是提现在人身上的，所有必须用动词，

1.She saw him get into a white car with a female.

get是一般态（完整过程），而不是不定态，所以不加to

2.He was seen to get into a white car with a female.

加to是因为和谓语 was seen分隔作用，删除谓语was seen，构成下句：

He got into a white car with a female.

这点可以参考文章：seem to do 和 seem to be doing

English is a bastard language, made up of many different languages. There are often no rules (as there are in more structured languages) which allow us to say why something is said one way or another.

英语是由许多不同的语言组成的杂种语言。通常没有规则(就像在更结构化的语言中一样)这允许我们为什么某件事可以这样或又可以那样说。本回答被网友采纳

感官动词see,look at,hear,notice,listen to,watch等一般接sb do sth或sb doing sth做宾语补足语;也可以接oneself done,如，I heard himself cheated by others yesterday.使役动词make,let,have sb do sth;get sb to do sth;make oneself done,have sth done,get sth done等。