The number of + plural noun + singular verb
A number of + plural noun + plural verb
The sentence is in Simple Past Tense.
Past Indefinite tense
Active Voice= Subject + Second Form of Verb + Object.
Passive Voice = Object + was/were + third of verb + by + subject.
Active Voice: Who
Passive Voice: By whom
This is a sentence of Future Indefinite Tense.
Will be and Shall be are the helping verbs of Future Indefinite Tense.
This sentence is of present continuous tense
Active Voice = Who is creating this mess? the passive sentence is
Passive Voice=By whom is this mess being created?
SH6-8-2023
Active voice formula: Subject + Verb + Object (She is writing a letter)
Passive Voice Formula: Object + (Be+ V3)+ (By+ subject)
A letter is being written by her.
AGM 30.4.23
Use helping verb was/were according to the subject of the Passive Voice sentence.
Use 3rd form of the verb.
Then use the word “by”, to show the doer.
Then convert the subject of the Active Voice Sentence into the object of the Passive Voice sentence.
In the end, add the remaining words if there are any in the Active Voice Sentence.
Given sentence is in Passive voice and in Present Simple Tense.
We need to change it into active voice.
While changing the voice objects becomes subject and subject changes into object.
Active Voice: Who + second form of a verb + clause
Passive Voice: By whom + was/were + object + third form of a verb + clause
This is an interrogative sentence of Past Indefinite Tense.
Present Indefinite Tense
Active Voice: Subject + Verb + Object
Passive Voice: Object + is/am/are+ third form of a verb + by + subject.