Sentence examples for tell when from inspiring English sources

It's hard to tell when".

You can tell when you see it.

Who did you tell when that happened?

Very hard to tell when.

It's easier to tell when he's pleased.

Pray tell, when were we not?

You can tell when I'm upset.

"I can tell when I'm angry.

Can he tell when it is happening?

Or tell when a trend is over?

How do you tell when convergence occurs?