Question

I noticed a sudden change in Aditya's face change to other voice

Answer 1

The given sentence's active voice can be changed into passive voice as shown and explained below:

A sudden change in Aditya's face was noticed by me.

Explanation

The verb in the sentence was Simple Past in the active form (noticed). When we convert the active voice of Simple Past into passive voice, we use passive form equivalent to the active form. The active form in Simple past is 'V2' or Simple Past form of the verb. The paqssive form is was/were+V3. The object is made the subject and vice versa; 'by' is added. The passive form in Simple Past is was/were +V3.  

Answer 2

Passive voice:

A sudden change in Aditya's face has been noticed by me.

Explanation:

• The active sentence is changed into passive sentence in the given question.
• In the given question, the object "a sudden change in Aditya's face" is made into subject in passive voice.
• The verb "noticed" is changed into past form as "has been noticed" in the passive voice.
• The word "by" is used before the object that acts on the subject.