you bet

definitely, for sure, of course

certainly!, for sure!

You Bet! was a British game show based around the format of the German show Wetten, dass..? developed by Frank Elstner. You Bet! ran from 1988 to 1997, initially hosted by Bruce Forsyth from 1988 until 1990, then by Matthew Kelly from 1991 until 1995 and finally by Darren Day until the series ended in 1997. It was produced by LWT for ITV at Shepperton Studios, and usually aired on Saturday evenings.
See more at Wikipedia.org...

Adverb
1. an expression of emphatic agreement
(synonym) and how, you said it

NATURALMENTE! CREDO BENE! MA CERTO!

You bet! idm. แน่นอน, จริงๆ, แน่ๆ