подчеркните в предложениях все глаголы - сказуемые. Определите видо временную форму и укажите инфинитив этих глаголов... 1. Listen! The telephone is ringing.
2. I was listening hard but I didn't hear anything.
3. His mother has had no news from him since he left home.
4. If we see her tomorrow, we'll tell her about your idea.
5. The man near the window is our Geodesy lecturer.

ringing -to ring ,listen -to listen , listening -to listen , didn't-to do , hear -to hear , had - to have, left - to leave , see - to see , tell - to tell .