1.Don’tyoufeeltiredsittingherealldaydoingnothing.tired后加of,为什么,我感觉不加反而顺口呢2.Nevertellliesisveryimportanttoastudent.tell改成telling为什么要用ing?

Question

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?

Answer 1

(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.