You may not believe this, but I've gone ...
You won't believe this, but I've met ...
You'll find this hard to believe, but I've always been interested in ...
Believe it or not, I've had ...
This may seem hard to believe, but I've taken ...
You may not believe this, but I've walked ...
You may not believe me, but I haven't had ... since ...
Believe it or not, I've always been good at ...
You may not believe this, but I've never been to ...
I know it's hard to believe, but I've never ...
Believe it or not, I've woken up ...
Would you believe, I've never had ...
I know it's hard to believe, but I've seen ...
As amazing as it sounds, I've never made ...
This may seem hard to believe, but I've been to ...
You'll never believe this, but I've always liked ...
This may sound unbelievable, but I've ridden ...
You'll never believe this, but I've visited ...
This may seem hard to believe, but I've taken part in ...
You will find this hard to believe, but I've already ...
Would you believe, I've never been able to ...
You may not believe me, but I've never tried ...
You won't believe this, but I've just ...
You may not believe this, but I've ...
You won't believe this, but I've worked ...
As amazing as it sounds, I haven't seen ... yet.
This may seem hard to believe, but I've never liked ...
This may sound unbelievable, but I've ...