Examples:

• You can bet your life that she will be at the party tonight.
• If you need help, you can bet your life that your friends will be there for you.
• You can bet your life that he will do everything in his power to win the game.
• If she promises to be there, you can bet your life that she will keep her word.
• You can bet your life that he won't be happy if you don't show up on time.
• If you trust him, you can bet your life that he will come through for you.
• You can bet your life that she won't give up until she reaches her goal.
• If it's important to her, you can bet your life that she will give it her all.
• You can bet your life that he won't let anyone else take credit for his hard work.
• If he says he can do it, you can bet your life that he will find a way to make it happen.
• You can bet your life that she won't back down from a challenge.
• If he promises to help you, you can bet your life that he won't let you down.
• You can bet your life that she won't settle for second best.
• If it's something she's passionate about, you can bet your life that she will go all in.
• You can bet your life that he won't take no for an answer.
• If he says he's going to do something, you can bet your life that he will follow through.
• You can bet your life that she won't let anyone stand in the way of her success.
• If he believes in something, you can bet your life that he will fight for it.
• You can bet your life that she won't give up until she achieves her dreams.
• If he's invested in something, you can bet your life that he will give it his all.
• And you can bet your life I can find you again.
• If they knew, we would have heard about it, you can bet your life.
• I don't know. I never seen any English soccer match but you can bet your life there's somebody close to us orchestrating this whole thing.
• And it's an historic fact, one convincingly established by the evidence—and one you can bet your life upon. Go ahead researchers—dig up all the old graves you want.
• You can bet your life on that.
• You can bet your life they did.
• You can bet your life on that, my dear.
• You can bet your life I don't.
• You can bet your life on it.
• You can bet your life I want "it."