I must oppose you must oppose he must oppose we must oppose you must oppose they must oppose
V-ing form
I must be opposing you must be opposing he must be opposing we must be opposing you must be opposing they must be opposing
Perfect
I must have opposed you must have opposed he must have opposed we must have opposed you must have opposed they must have opposed
V-ing perfect
I must have been opposing you must have been opposing he must have been opposing we must have been opposing you must have been opposing they must have been opposing
Negation
Simple form
I must not oppose you must not oppose he must not oppose we must not oppose you must not oppose they must not oppose
V-ing form
I must not be opposing you must not be opposing he must not be opposing we must not be opposing you must not be opposing they must not be opposing
Perfect
I must not have opposed you must not have opposed he must not have opposed we must not have opposed you must not have opposed they must not have opposed
V-ing perfect
I must not have been opposing you must not have been opposing he must not have been opposing we must not have been opposing you must not have been opposing they must not have been opposing
Interrogative form
Simple form
must I oppose? must you oppose? must he oppose? must we oppose? must you oppose? must they oppose?
V-ing form
must I be opposing? must you be opposing? must he be opposing? must we be opposing? must you be opposing? must they be opposing?
Perfect
must I have opposed? must you have opposed? must he have opposed? must we have opposed? must you have opposed? must they have opposed?
V-ing perfect
must I have been opposing? must you have been opposing? must he have been opposing? must we have been opposing? must you have been opposing? must they have been opposing?
Interro-negative form
Simple form
must I not oppose? must you not oppose? must he not oppose? must we not oppose? must you not oppose? must they not oppose?
V-ing form
must I not be opposing? must you not be opposing? must he not be opposing? must we not be opposing? must you not be opposing? must they not be opposing?
Perfect
must I not have opposed? must you not have opposed? must he not have opposed? must we not have opposed? must you not have opposed? must they not have opposed?
V-ing perfect
must I not have been opposing? must you not have been opposing? must he not have been opposing? must we not have been opposing? must you not have been opposing? must they not have been opposing?