Adjectives

[jack]

1. Drive-thru open 24hrs (What's the subject and verb?)
2. Drive-thru opens 24hrs. (How do you know if ‘open’ is a verb or an adjective?)

What do these mean?
3. The store is open. (It is open for business?)
4. The store is opened. (Does this mean the is ripped apart?)

5. You can buy stuff at stock price. (Why is 'stock' correct? How is it an adjective?)
6. You can buy stuff at stocked price. (If 'stocked' is incorrect, why?)

[Casiopea]

1. Drive-thru open 24hrs => Statement of fact: (The) drive-thru (is) open 24hrs.
2. Drive-thru opens 24hrs => Odd; opens is active, so 24hrs is acted upon.

3. The store is open. => Its doors are open for business.
4. The store is opened. => Odd; 'opened' is a verb, 'open' is an adjective.
5. You can buy stuff at stock price. => Adjective
6. You can buy stuff at stocked price. => Odd; The price is stocked.

[jack]

2. Drive-thru opens 24hrs => Odd; opens is active, so 24hrs is acted upon.

What do you mean by it is 'acted upon'?

4. The store is opened. => Odd; 'opened' is a verb, 'open' is an adjective.

So for this sentence, 'opened' is a verb? Not an adjective?

What do these mean?
5. When the bottle is opened, the CO2 starts to come out. ('opened' is an adjective here right?)
6. When the bottle is open, the CO2 starts to come out ('open' is a noun here?

[Casiopea]

Max opens the door.
=> the door is acted upon by Max: The door opens. It moves because Max moves it.



The store is opened (participle).


5. When the bottle is opened (participle)
6. When the bottle is open (adjective)

[jack]

The store is opened (participle).

4. The store is opened. => Odd; 'opened' is a verb, 'open' is an adjective.

So 'opened' is a participle and a verb? Isn't 'is' the verb? and a sentence can only have one main verb?

[Casiopea]

So 'opened' is a participle and a verb? Isn't 'is' the verb? and a sentence can only have one main verb?

That's correct. 'opened' is a verb, a past tense verb, as well as a participle, a past participle:

Sam opened the store. (Past tense verb)
The store is opened. (Passive structure: Main verb (is) + past participle

[jack]

Thanks.

[Casiopea]

You're welcome.

[jack]

Are these correct, if not why?
1. There is a continued increase in viruses in computers.
2. There is a continued increased in viruses in computers.


What do these mean?
3. There is a continued increase in viruses in computers.
4. There is a continued increase in viruses for computers.
5. There is a continued increase in viruses on computers.

[Francois]

1) is correct. 'increase' works as a noun here.
2) is wrong -- increased can't be a noun (unless there is a very specific context), so the sentence misses a noun.
3, 4 and 5 are awkward IMO. They could work, but they're more likely to be said from someone who doesn't know much about the topic. I would talk about computer viruses.

FRC