Question

the shops were always very busy it is passive voice or not

Answer 1

$\huge\color{Red}{Hey\:dear!!}$

I don't think that the given sentence is in passive voice because I am not able to find out the object here.

$\boxed{thankyou!!}$

Answer 2

$\huge\color{Violet}{Heya!}$

$<b>This sentence cannot be converted to its passive form as lacks a verb.These types of sentences cannot be used to change the voice.$

$\bf{Hope\:it\:helps}$