Lesson 15. CERTAINTY AND UNCERTAINTY.
To be honest, I’m not certain.
Maybe.
I couldn’t say for sure.
I couldn’t say for definite.
I couldn’t say absolutely.
I’m positive that he did it.
I’m certain of it.
I’m not sure that’s a good idea.
I can’t be certain of what time I left the office.
I’ve no idea where my shoes are.
I’m not certain if he’s telling the truth.
Are you certain this is what you want to do?
I swear this is the truth.
I have no doubt about how I feel.
Absolutely.