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Has anyone called the police?

Had anyone called the police before the thief got away?

Are they both correct? Is using had to start the sentence wrong?

Did anyone forget their keys?

Does anyone care about me?

Why do the words forget andcare still remain in present tense?
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Hi,

Has anyone called the police?

Had anyone called the police before the thief got away?

Are they both correct? Yes. I asume you know that the Present Perfect and the Past Perfect have different meanings.

Is using had to start the sentence wrong? No.

Did anyone forget their keys?

Does anyone care about me?

Why do the words forget andcare still remain in present tense? They are not in present tense. They are each the base or infinitive form of the verb, used after the auxilary verbs 'did' and 'does'.

Clive
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michaeltingHas anyone called the police?
Had anyone called the police before the thief got away?

Are they both correct? Is using had to start the sentence wrong?
Both are fine. The first sentence is present perfect tense; the second is past perfect tense.

michaeltingDid anyone forget their keys?
Does anyone care about me?

Why do the words forget andcare still remain in present tense?
English forms tenses in two ways - first, the verb itself can be changed from simple present to simple past; and second, a helping verb can be used with one of the verb parts.

When "do" is the helping verb, the main verb is used in its base form. The base form is the same as the simple present. Do is used for questions and emphasis.

Present:

Do you go to school?

Yes, I go to school.

Past:

Did you go to school today?

Yes, I went to school today.

Present:

Do you forget your keys?

No. They are important. I never forget them.

Past:

Did you forget your keys?

Yes I forgot them. They are in my desk at home.
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