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