Unit 2D. Grammar

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Nguyễn  Việt Dũng

Read the Learn this! box. Then find examples for each rule (1-3) in the quiz in exercise 1. (Đọc phần Learn this! Sau đó tìm ví dụ cho mỗi quy tắc (1-3) ở bài 1.

LEARN THIS! Infinitives and -ing forms

1 Some verbs can be followed by an infinitive with to or an -ing form, but with a change in meaning.

They stopped talking when the teacher came in.

I saw my friend in town and stopped to talk to him.

2 The verbs feel, hear, see and watch are followed by an object + infinitive without to for completed actions and object + -ing form for ongoing actions.

I watched him open the door.

I watched him walking down the street.

3 We can use -ing forms in the same way as normal nouns, as the subject or the object of a verb.

Driving in the town centre is banned during the day.

I think they should ban driving in the town centre during the day.