bet
1. don’t bet on; I wouldn't bet on…
e.g.: A: Do you think it'll be sunny tomorrow?
B: I wouldn't bet on it.
2. I ('ll) bet
① I bet it'll rain tomorrow!
I bet you can't stand on your hands.
I'll bet you were angry.
② A: She's crying.
B: I bet she is.
A: I can stand on my hands!
B: I bet you can.
③ A: Ok, I'll bring you a good one next time.
B: I bet! You've said this a thousand times!
3. bet you anything
e.g.: Bet you anything (you like) he won't turn up.
Bet you what you like she'll get drunk.
4. What’s the betting…?
e.g.: What's the betting they'll be asleep when we get back?
What's the betting she won't call you by five o'clock?
5. You bet
e.g.: A: Are you coming?
B: You bet!
A: Were you frightened?
B: You bet I was.