Explanation

1st form of verb: Swim

2nd form of verb: Swam

3rd form of verb: Swum

Explanation

• 1st form of verb: Think
• 2nd form of verb: Thought
• 3rd form of verb: Thought
  

Explanation

This is because the noun 'police' is always treated as a collective noun, and thus the plural form of the verb i.e

'Have' must be used and not singular forms like is, or has;

and were is incorrect in terms of tense.

Explanation

Explanation

The number of guests at the party was amazing.

"The number of guests at the party was amazing," the verb "was" is used because the subject of the sentence is "the number," which is a singular noun.

Subject: The number (singular)

Verb: was (singular form of "to be")

Complement: amazing (describing the subject)

Explanation

• The improved sentence would be: "Had you been careful, you could have avoided the accident."
• This is a conditional sentence, and "had" is the correct auxiliary verb to use in the if-clause (instead of "have" or "had have"). The sentence is expressing a hypothetical situation, and "had you been" is the correct way to form the conditional perfect tense.

Explanation

• The correct sentence would be: "What did you do last week?"
• This is a question in the past tense, asking about an action that was completed in the past (last week). The verb "did" is the correct form of the verb "do" in the past tense, and it is followed by the base form of the verb "do" (which becomes "do" instead of "does" because it's a question).

Explanation

1. Base form (Present): awake
2. Past simple (Simple past): awoke
3. Past participle: awoken

Explanation

I saw a beautiful bird means میں نے ایک خوبصورت پرندہ دیکھا 

This is a sentence of past indefinite tense.

See is a verb which means دیکھنا

Saw is the second form and seen is the third form of see.

Past Indefinite tense

Active Voice= Subject +  Second Form of Verb + Object.

Passive Voice = Object + was/were + third of verb + by + subject.

Explanation

• In this sentence, "does" is the correct form of the verb.
• When constructing sentences in the present simple tense for the third person singular (like "she"), we use "does" as the auxiliary verb.
• The structure is "subject + does + base form of the main verb."