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