1.Don’t you feel tired sitting here all day doing nothing.tired后加of ,为什么,我感觉不加反而顺口呢2.Never tell lies is very important to a student.tell改成telling 为什么要用ing?

1.Don’t you feel tired sitting here all day doing nothing.tired后加of ,为什么,我感觉不加反而顺口呢2.Never tell lies is very important to a student.tell改成telling 为什么要用ing?
1.Don’t you feel tired sitting here all day doing nothing.
tired后加of ,为什么,我感觉不加反而顺口呢
2.Never tell lies is very important to a student.
tell改成telling 为什么要用ing?

1.Don’t you feel tired sitting here all day doing nothing.tired后加of ,为什么,我感觉不加反而顺口呢2.Never tell lies is very important to a student.tell改成telling 为什么要用ing?
(Be) tired of 是短语,没有tired doing这种用法吧.后面的of sitting 做的是状语.
第二句话,tell是动词不能做主语,而telling是tell 的ing分词相当于名词可以做主语.

tired of doing sth 呀
第二个是动词做主语呀

be(或者其他） tired of，此为词组
在这里面telling lies在开头，所以是个动名词，动名词不就是要ing么