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