To form a negative sentence from a positive one, especially with the verb "to be" (is, am, are, was, were), we generally add "not" after the verb. We must also ensure that the tense of the verb remains consistent with the original sentence.
Correct Option: A) They weren’t happy.
This option correctly uses the past tense form of "to be" ("were") and adds "not" (contracted to "n't") to make it negative, matching the tense of the original sentence.
To change an affirmative sentence into a negative sentence, we generally add "not" after the auxiliary verb (or helping verb). If there is no auxiliary verb, we use "do/does/did + not" depending on the tense and subject.
Correct Option: A) The baby is not crying.
To change an affirmative sentence in the Simple Present Tense to its negative form, we need to use the auxiliary verbs 'do' or 'does' followed by 'not'. The choice between 'do' and 'does' depends on the subject of the sentence. For third-person singular subjects (he, she, it, singular nouns), we use 'does'. For all other subjects (I, you, we, they, plural nouns), we use 'do'. After 'do not' or 'does not', the main verb should be in its base form (V1).
Correct Option: A) He does not go to temple every day.
To form the negative of a simple present tense sentence, we generally use the auxiliary verbs 'do' or 'does' followed by 'not' and the base form of the main verb. The original sentence "We believe in honesty" is in the simple present tense.
Correct Option: D) We don’t believe in honesty.
To change an affirmative sentence into a negative sentence, we generally add "not" after the auxiliary verb (or helping verb). In the given sentence, "are" is the auxiliary verb.
Correct Option: D) They are not doctors.
To form a negative sentence from a simple present tense affirmative sentence, we need to use the auxiliary verbs 'do' or 'does' followed by 'not', and then the base form of the main verb. The choice between 'do' and 'does' depends on the subject of the sentence.
Correct Option: D) She doesn’t teach us English.