Which of the following modal auxiliary verbs does NOT change its form in passive voice transformation?

- Can, will, এবং shall এই তিনটি modal auxiliary verb passive voice-এ পরিবর্তিত হওয়ার সময় তাদের form পরিবর্তন করে।
যেমন:
Can -> can be
Will -> will be
Shall -> shall be

উদাহরণ:
Active: He can do the work.
Passive: The work can be done by him.

Active: She will finish the project.
Passive: The project will be finished by her.

Active: We shall complete the task.
Passive: The task shall be completed by us.

- কিন্তু 'must' হল একমাত্র modal auxiliary verb যা passive voice-এ পরিবর্তিত হওয়ার সময় তার form পরিবর্তন করে না। Must -> must (remains the same)
উদাহরণ:
Active: You must submit the report.
Passive: The report must be submitted (by you).