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Anonymous Posted 21 years ago
Grammar

When do the banks open?

When do the banks open?

The answer can be: I don't know when the banks are open.

Is the answer ok?

My doubt is why do I use infinitive after to be in this sentence?

Is there some rule about that situation I don't know?

Thanks,
  

Top answer

1- when do the banks open? I don't know when the banks open. 2- when are the banks open?

  • 1- when do the banks open?
  • I don't know when the banks open.
  • 2- when are the banks open?
  • I don't know when the banks are open.
  • both seems grammatically correct.
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2 Answers
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1- when do the banks open? I don't know when the banks open.

2- when are the banks open? I don't know when the banks are open.

both seems grammatically correct. in 1 "open" is a verb but in 2 it's an adjective. a native can tell whether there is a difference in meaning.
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Hi,

When do the banks open?

The answer can be: I don't know when the banks are open.

Is the answer ok? Yes.

My doubt is why do I use infinitive after to be in this sentence? 'Open' here is an adjective, not an infinitive.

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