I doubt that Tom understands what we're talking about.

I doubt if he will come.

I am doubtful whether he will come.

I doubt that Tom is guilty.

I'm doubtful that he's going to come.

I doubt that he's a lawyer.

I doubt that I'm a good writer.

But I doubt if you have heard about this 'story' of Nigeria nature's master piece.

I doubt Tom can comprehend what we're talking about.

I doubt that Tom and Mary understand what we're talking about.

I'm doubtful.

But I doubt that it has.

I doubt if Bob will come on time.

I don't doubt that she is married.

I doubt that she loves you.

I doubt that Tom will get here on time.

I don't doubt that Tom will win.

I don't doubt that Tom will win.

I doubt Tom will like that.

I think it doubtful whether he will keep his word.

I doubt the new proposal will be accepted.

I don't doubt that he will help me.

I don't doubt that Tom will arrive on time.

I doubt if Tom speaks French.

I doubt Tom will agree to that.

I doubt Tom will be here tomorrow.

I doubt that Tom is very hungry.

'Everything.

I doubt that.

I sort of doubt it.

I'm not sure if it's going to work, I have my doubts sometimes.

Personally, I doubt tomorrow's demo will change anything.

I doubt if he will come.

I doubt if he is a lawyer.

I doubt that Tom is innocent.

I doubt that Tom is happy.

I doubt that Tom is guilty.

I doubt Tom will be surprised.

I doubt Tom will come.

I doubt this will work.

I doubt that this will work.

I doubt that'll work.

I doubt that that'll work.

I doubt that Tom is hungry.

I doubt if sanctions will work.