英文 v. + v-ing

通常 verb+ing form係 present continous tense(現在進行式).
is/am/are 後面就要加 ing
e.g.
I am doing homework. / He is eating an apple. / They are playing football.
一些動詞(love / like)後面亦要加 ing
e.g.
I like doing homework. / He love eating apples. / They like playing football.


圖片參考：http://tw.yimg.com/i/tw/ugc/rte/smiley_34.gif

1.Present continuous tense現在進行式,例如do變成 doing. (I do my work – I am doing my work.
2.Verbal noun動名詞, swim 變成 swimming. (I swim in water –
Swimming is a good exercise..)

好多情況會用到
1. like , love ...後v+ing
2. 作動名詞 ..Reading book is my interest.
3. prepo 後..
interested in reading