Speak:
The President refused to speak to the waiting journalists.
I saw her in the street but we didn't speak.
How many languages do you speak?
Say:
We talked on the phone for over an hour.
When they start talking it's hard to stop them.
What are you talking about?
Tell:
What did I tell you?
He told the news to everybody he saw
I'm ready to go now, he told her.