英语ing形式的词

1是去掉不发音结尾的e在加ing如come—coming
come,
coming
initiate,
initiating
indicate,
indicating
notice,
noticing
.....
2是双写结尾加ing如swim—swimming
put,
putting
get,
getting
let,
letting
......
3是直接加ing如play—playing
lay.
laying
say,
saying
ask,
asking
do,
doing
.....
一天一夜也写不完啊
。。。。