i tell you what

یه چیزی به شما ( بهت ) بگم.

I tell you what. i'll
عبارت به معنی:بهت گفته باشم ( ها )
بهت بگم ( ها )
Use to introduce a suggestion or to emphasize a statement

I tell you what, this car is too red
I tell you what, i wouldn't pay that much for a pair of shoes

بهت گفته باشم که . . .