Question

Change into voice
Students must obey the teacher

Answer 1

Answer:

aren't students must obey the teacher

Answer 2

Answer:

• The voice change of the given sentence is 'The teacher must be obeyed by the students'. It is a passive voice and its active voice is 'Students must obey the teacher'.

• When a modal auxiliary verb turns into passive voice it takes 'be' after it and here it is : 'must be' .

• Procedure : Object of active voice will turn into subject of passive and subject of active voice will turn into object of passive voice. And here they are 'the teacher' ( subject ), 'by the students' ( object ).

• Verb's third form is always used in passive voice and here it is : 'obey - obeyed'.

• Here preposition 'by' is introducing 'the teacher'.