Find the gerund:

а) i saw tim doing his homework.
ә) i shall look forward to seeing you again.
б) there are many discoveries being made all over the world.
в) the boys continued playing football.
г) never jump off a moving train.
ғ) the children were tired of running.
д) running water is always better than standing water.
.

Present Simple: Это настоящее простое: 1. Настаящая форма( положительная) I work. (Я работаю) I read. (Я читаю) Но при местоимениях: She, He, It в конце добавляется "s" She works ( Она работала ) He works (Он работает) 2. Отрицательная форма: I don't work. (Я не работаю) I don't read. (Я не читаю) Но при: She, He , It употребляется doesn't She doesn't work. (Она не работает) 3. Вопросительная : Do you work? ( ты работаешь?) Do you read? (ты читаешь?) She, He, It: Does she work? ( она работает?) Does he read? ( он работает?) Present Continuous: Настоящее длительное Вопросительное простое: I worked ( я работал) He worked She worked We worked Отрицательное: I did not work ( я не работал) He did not work We didn't work They didn't work Вопросительное: Did he work? (ты работал?) did she work? did you work?

2. I had been waiting for him for 20 minutes when I realised that I was in the wrong restaurant.
3. At the time the factory closed down, Sarah had been working there for five years.
4. The orchestra had been playing for ten minutes when a man in the audience suddenly began shouting. 
5. I had been walking along the road for five minutes when I saw a monster. 

16.3

1. It was very noisy next door. Our neighbours were having a party.
2. We were good friends. We had known each other for a long time.
3. John and I went for a walk. I had difficulty keeping up with him because he was walking so fast.
4. Mary was sitting on the ground. She was out of breath. She had been running.
5. When I arrived, everybody was sitting round the table with their mouths full. They were eating.
6. When I arrived, everybody was sitting round the table and talking. Their mouths were empty but their stomachs were full. They had eaten.
7. Jim was on his hands and knees on the floor. He was looking for his contact lens.
8. When I arrived, Kate was waiting for me. She was rather annoyed with me because I was late and she had been waiting for a very long time.
9. I was sad when I sold my car. I had had it for a very long time.
10. We were extremely tired at the end of the journey. We had been travelling for more than 24 hours.