Making speculations
I wonder if...
I suppose...
I suspect that...
I'm pretty sure that...
I'm convinced/certain/positive that...
It's impossible that...
There's no doubt that...
Responding to speculations
Definitely!
You're probably right
You may be right
Well, maybe, but...
That hardly seems likely
No way! (informal)
I wonder if...
I suppose...
I suspect that...
I'm pretty sure that...
I'm convinced/certain/positive that...
It's impossible that...
There's no doubt that...
Responding to speculations
Definitely!
You're probably right
You may be right
Well, maybe, but...
That hardly seems likely
No way! (informal)