*I let him to leave.
I let him leave.
*I made him to work hard.(我使他努力工作)
I made him work hard.
let My mother let me watch TV tonight.
make He makes his students respect teachers.
have He had his sons clean their rooms.
see I saw him run away.
hear I heard the birds sing.
watch I watched the kids play.
notice I noticed her cry.
*He made his son ran away from home.
*I saw him walked away..
*I have never heard him sang any song.
I helped him wash his car.
I helped him to wash his car.