英语：不带to的不定式短语

find sb. do sthg.
feel sb. do sthg.
notice sb. do sthg.
look at sb. do sthg.
watch sb. do sthg.
see sb. do sthg.
listen to sb. do sthg.
hear sb. do sthg.
make sb. do sthg.
let sb. do sthg.
have sb. do sthg.
you'd better do sthg.
why not do sthg.
help sb. (to) do sthg.
不给追加分啊 (*^__^*) 嘻嘻……

let sb. do sth.

一感 feel
二听 hear ，listen to
三让 let，make，get
四看 see，watch，look，notice
一观察observe
半帮助help（to加不加都可以）