find out - determine - ascertain - realize

[britfan]

Have a look at my sentences. Thanks.
It's always hard to find out the truth when both sides claim otherwise.
It's always hard to determine the truth when both sides claim otherwise.
It's always hard to ascertain the truth when both sides claim otherwise.
It's always hard to realize the truth when both sides claim otherwise.

 

[teechar]

when both sides claim otherwise.

What do you mean by that?

 

[britfan]

What do you mean by that?

Both sides claim something different, and it's difficult to determine who's right.

 

[teechar]

Both sides claim something different, and it's difficult to determine who's right.

That works. Can't you use it instead?