定式就是常规的意思,不定式就是不同于常规的语法。用于表达含递进意味的句子,比如说,他带了伞去避免下雨。He takes his umbrella to avoid heavy rain。当然,不定式也用于固定的短语之中,如想要做某事,want to do sth。其次不定式还能做定语修饰某物,如,这扇门的钥匙,the key to the door。求采纳,非常感谢
第2个回答 2009-10-10
英语的时态名称:现在进行时/ 过去进行时 构成:be(am/is/are)+ doing ; be(was/were)+doing 现在分词构成:(三种) a.一般在词尾加ING b 以不发音字母E结尾,去掉E再加ING c 以重读闭音节结尾且只有一个辅音字母时,双写这个辅音字母再加ING。 把以下这些词改过来: eat eating see seeing hope hoping play playing clean cleaning come coming run running sit sitting get getting swim swimming wait waiting help helping
第3个回答 2019-11-13
1 to play 2 is 3 Don't talk 4 twelfth 5 playing 6 walks 7 clean 8 to go 9 tooth 10 leaves
第4个回答 2020-06-13
可以 如walk a little faster
第5个回答 2019-12-14
to play is don'talk twelveth playing walks cleans to go is teeth leaves