Question

Raina is singing a melodius song
Change into passive voice​

Answer 1

Answer:

A melodious song was sang by Raina

Answer 2

${\colorbox{pink} {\boxed{\tt{QUESTION:}}}}$

Raina is singing a melodius song.

${\colorbox{pink} {\boxed{\tt{WHAT\:TO\: DO?:}}}}$

Change into passive voice.

${\colorbox{pink} {\boxed{\tt{ANSWER:}}}}$

A melodious song is being sung by raina. (passive voice)

As raina is *singing* which is in present tense so that's why *is being* has used.