I know we will be late.
I knew we would be late.
I want to know whether he will be at home.
I wanted to know whether he would be at home.
When will you be ready?He asked.
He asked when I would be ready.
I can't say whether Bob will do the work perfectly, but he will do his best.
He asked me whether he would see Olga there.
Are you sure that we will have time to do that?
I was afraid he would say: "I don't think I will be able to come."
I did not know what he would speak about.
Когда начинается предложение в Present Simple - I know - ставим will+verb.
Когда начинается в Past Simple - I knew - ставим would + verb.
