Question

she recognized him at once this sentence is what active voice or passive voice​

Answer 1

The above sentence is an active voice

●Passive voice

=》He was recognised at once by her.

#_100% correct✌

Answer 2

The above sentence is in the active voice.

Had it been 'he was recognized by her', it would have been in passive voice.

The easiest way to know a sentence from active to passive voice is by recognizing the subject.

• Usually, the subject is placed at the end of the sentence when it is in passive voice.
• When a sentence is in passive voice, 'by' is also used towards the end of the sentence before the subject.