I must reverse-engineer you must reverse-engineer she 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 she 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 she 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 she 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 mustn't reverse-engineer you mustn't reverse-engineer she mustn't reverse-engineer we mustn't reverse-engineer you mustn't reverse-engineer they mustn't reverse-engineer
V-ing form
I mustn't be reverse-engineering you mustn't be reverse-engineering she mustn't be reverse-engineering we mustn't be reverse-engineering you mustn't be reverse-engineering they mustn't be reverse-engineering
Perfect
I mustn't have reverse-engineered you mustn't have reverse-engineered she mustn't have reverse-engineered we mustn't have reverse-engineered you mustn't have reverse-engineered they mustn't have reverse-engineered
V-ing perfect
I mustn't have been reverse-engineering you mustn't have been reverse-engineering she mustn't have been reverse-engineering we mustn't have been reverse-engineering you mustn't have been reverse-engineering they mustn't have been reverse-engineering
Interrogative form
Simple form
must I reverse-engineer? must you reverse-engineer? must she 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 she 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 she 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 she 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
mustn't I reverse-engineer? mustn't you reverse-engineer? mustn't she reverse-engineer? mustn't we reverse-engineer? mustn't you reverse-engineer? mustn't they reverse-engineer?
V-ing form
mustn't I be reverse-engineering? mustn't you be reverse-engineering? mustn't she be reverse-engineering? mustn't we be reverse-engineering? mustn't you be reverse-engineering? mustn't they be reverse-engineering?
Perfect
mustn't I have reverse-engineered? mustn't you have reverse-engineered? mustn't she have reverse-engineered? mustn't we have reverse-engineered? mustn't you have reverse-engineered? mustn't they have reverse-engineered?
V-ing perfect
mustn't I have been reverse-engineering? mustn't you have been reverse-engineering? mustn't she have been reverse-engineering? mustn't we have been reverse-engineering? mustn't you have been reverse-engineering? mustn't they have been reverse-engineering?