I must consult you must consult he must consult we must consult you must consult they must consult
V-ing form
I must be consulting you must be consulting he must be consulting we must be consulting you must be consulting they must be consulting
Perfect
I must have consulted you must have consulted he must have consulted we must have consulted you must have consulted they must have consulted
V-ing perfect
I must have been consulting you must have been consulting he must have been consulting we must have been consulting you must have been consulting they must have been consulting
Negation
Simple form
I mustn't consult you mustn't consult he mustn't consult we mustn't consult you mustn't consult they mustn't consult
V-ing form
I mustn't be consulting you mustn't be consulting he mustn't be consulting we mustn't be consulting you mustn't be consulting they mustn't be consulting
Perfect
I mustn't have consulted you mustn't have consulted he mustn't have consulted we mustn't have consulted you mustn't have consulted they mustn't have consulted
V-ing perfect
I mustn't have been consulting you mustn't have been consulting he mustn't have been consulting we mustn't have been consulting you mustn't have been consulting they mustn't have been consulting
Interrogative form
Simple form
must I consult? must you consult? must he consult? must we consult? must you consult? must they consult?
V-ing form
must I be consulting? must you be consulting? must he be consulting? must we be consulting? must you be consulting? must they be consulting?
Perfect
must I have consulted? must you have consulted? must he have consulted? must we have consulted? must you have consulted? must they have consulted?
V-ing perfect
must I have been consulting? must you have been consulting? must he have been consulting? must we have been consulting? must you have been consulting? must they have been consulting?
Interro-negative form
Simple form
mustn't I consult? mustn't you consult? mustn't he consult? mustn't we consult? mustn't you consult? mustn't they consult?
V-ing form
mustn't I be consulting? mustn't you be consulting? mustn't he be consulting? mustn't we be consulting? mustn't you be consulting? mustn't they be consulting?
Perfect
mustn't I have consulted? mustn't you have consulted? mustn't he have consulted? mustn't we have consulted? mustn't you have consulted? mustn't they have consulted?
V-ing perfect
mustn't I have been consulting? mustn't you have been consulting? mustn't he have been consulting? mustn't we have been consulting? mustn't you have been consulting? mustn't they have been consulting?