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