shine(shining) write(writing) come(coming) have(having)

run(running) put(putting) drop(dropping) Swim(swimming)

send(sending) sing(singing) eat(eating) look(looking)

现在进行时：表示现在正在做某事 结构 ：be（am/is/are)+ 动词ing

1.直接+ing:

2.去e +ing:

3.双写+ing:

动词ing

时间：now