I must reverse-engineer you must reverse-engineer he must reverse-engineer we must reverse-engineer you must reverse-engineer they must reverse-engineer
V-ing form
I must be reverse-engineering you must be reverse-engineering he must be reverse-engineering we must be reverse-engineering you must be reverse-engineering they must be reverse-engineering
Perfect
I must have reverse-engineered you must have reverse-engineered he must have reverse-engineered we must have reverse-engineered you must have reverse-engineered they must have reverse-engineered
V-ing perfect
I must have been reverse-engineering you must have been reverse-engineering he must have been reverse-engineering we must have been reverse-engineering you must have been reverse-engineering they must have been reverse-engineering
Negation
Simple form
I must not reverse-engineer you must not reverse-engineer he must not reverse-engineer we must not reverse-engineer you must not reverse-engineer they must not reverse-engineer
V-ing form
I must not be reverse-engineering you must not be reverse-engineering he must not be reverse-engineering we must not be reverse-engineering you must not be reverse-engineering they must not be reverse-engineering
Perfect
I must not have reverse-engineered you must not have reverse-engineered he must not have reverse-engineered we must not have reverse-engineered you must not have reverse-engineered they must not have reverse-engineered
V-ing perfect
I must not have been reverse-engineering you must not have been reverse-engineering he must not have been reverse-engineering we must not have been reverse-engineering you must not have been reverse-engineering they must not have been reverse-engineering
Interrogative form
Simple form
must I reverse-engineer? must you reverse-engineer? must he reverse-engineer? must we reverse-engineer? must you reverse-engineer? must they reverse-engineer?
V-ing form
must I be reverse-engineering? must you be reverse-engineering? must he be reverse-engineering? must we be reverse-engineering? must you be reverse-engineering? must they be reverse-engineering?
Perfect
must I have reverse-engineered? must you have reverse-engineered? must he have reverse-engineered? must we have reverse-engineered? must you have reverse-engineered? must they have reverse-engineered?
V-ing perfect
must I have been reverse-engineering? must you have been reverse-engineering? must he have been reverse-engineering? must we have been reverse-engineering? must you have been reverse-engineering? must they have been reverse-engineering?
Interro-negative form
Simple form
must I not reverse-engineer? must you not reverse-engineer? must he not reverse-engineer? must we not reverse-engineer? must you not reverse-engineer? must they not reverse-engineer?
V-ing form
must I not be reverse-engineering? must you not be reverse-engineering? must he not be reverse-engineering? must we not be reverse-engineering? must you not be reverse-engineering? must they not be reverse-engineering?
Perfect
must I not have reverse-engineered? must you not have reverse-engineered? must he not have reverse-engineered? must we not have reverse-engineered? must you not have reverse-engineered? must they not have reverse-engineered?
V-ing perfect
must I not have been reverse-engineering? must you not have been reverse-engineering? must he not have been reverse-engineering? must we not have been reverse-engineering? must you not have been reverse-engineering? must they not have been reverse-engineering?