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