2.7 Using Verbs of Perception

Certain verbs of perception are followed by either the simple form* or –ing form** of a verb. There is often little difference in meaning between the two forms, except that the –ing form usually gives the idea of “while.” For example:

(a) I saw my friend run down the street.

(b) I saw my friend running down the street.

(c) I heard the rain fall on the roof.

(d) I heard the rain falling on the roof.

Sometimes (not always) there is a clear difference between using the simple form or the –ing form. The use of the –ing form gives the idea that an activity is already in progress when it is perceived. For example:

When I walked into the apartment, I heard my roommate singing in the shower.

I heard a famous opera star sing at the concert last night.

Verbs of perception followed by the simple form or the –ing form
See	Notice	Watch
Look at	Observe	Hear
Listen to	Feel	Smell

 

*The simple form of a verb = the infinitive form without “to”.

**The –ing form refers to the present participle.

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