look
Linking verb (= ‘seem’)
Look can mean ‘seem’ or ‘appear’. In this case it is a linking verb (see here) and can be followed by adjectives or (in British English) nouns.
- You look angry – what’s the matter? (not
You look angrily …) - I looked a real fool when I fell in the river. (BrE)
- The garden looks a mess. (BrE)
To talk about a temporary appearance, we can use simple or progressive forms; there is not much difference of meaning.
- You look / You’re looking very unhappy. What’s the matter?
Look can be followed by like or as if (see here). Progressive forms are not usually used in this case.
- She looks like her mother.
- It looks as if it’s going to rain. (not
It’s looking as if …) - She looks as if she’s dreaming.
- She looks like she’s dreaming. (informal) (not
She looks like dreaming.)
Look like …ing … (informal) is used with future reference in British English.
- It looks like being a wet night. (= It looks as if it will be …)
Look + infinitive is also sometimes used in informal British English.
- The team look to repeat their success. (= It looks as if they will …)
Ordinary verb (= ‘direct one’s eyes’)
When look means ‘direct one’s eyes’, it is used with adverbs, not adjectives. Before an object, a preposition is necessary (usually at).
- The boss looked at me angrily. (not
The boss looked at me angry.)
A preposition is not used when there is no object.
- Look! It’s changing colour. (not
Look at! …)
Not followed by if
Before if or whether, we use see or look to see, not look.
- Could you see if Anna’s in the kitchen? (not
Could you look if Anna’s in the kitchen?) - ‘What are you doing?’ ‘I’m looking to see whether these batteries are OK.’ (not
I’m looking whether…)
look after and look for; fetch
These are not the same. Look after means ‘take care of’; look for means ‘try to find’. Compare:
- Could you look after the kids while I go shopping?
- I spent ages looking for her before I found her.
Fetch, not look for, is used in British English, if we know where people or things are.
- I’m going to the station at three o’clock to fetch Daniel. (not
… to look for Daniel.)
For Look! used in persuading, (see here).
For the difference between look (at), watch and see, (see here).
For other uses of look, see a good dictionary.