English verb conjugation
MUST PUSH

Regular verb: push - pushed - pushed

Affirmation

Simple form	V-ing form
I must push you must push he must push we must push you must push they must push	I must be pushing you must be pushing he must be pushing we must be pushing you must be pushing they must be pushing
Perfect	V-ing perfect
I must have pushed you must have pushed he must have pushed we must have pushed you must have pushed they must have pushed	I must have been pushing you must have been pushing he must have been pushing we must have been pushing you must have been pushing they must have been pushing

Negation

Simple form	V-ing form
I mustn't push you mustn't push he mustn't push we mustn't push you mustn't push they mustn't push	I mustn't be pushing you mustn't be pushing he mustn't be pushing we mustn't be pushing you mustn't be pushing they mustn't be pushing
Perfect	V-ing perfect
I mustn't have pushed you mustn't have pushed he mustn't have pushed we mustn't have pushed you mustn't have pushed they mustn't have pushed	I mustn't have been pushing you mustn't have been pushing he mustn't have been pushing we mustn't have been pushing you mustn't have been pushing they mustn't have been pushing

Interrogative form

Simple form	V-ing form
must I push? must you push? must he push? must we push? must you push? must they push?	must I be pushing? must you be pushing? must he be pushing? must we be pushing? must you be pushing? must they be pushing?
Perfect	V-ing perfect
must I have pushed? must you have pushed? must he have pushed? must we have pushed? must you have pushed? must they have pushed?	must I have been pushing? must you have been pushing? must he have been pushing? must we have been pushing? must you have been pushing? must they have been pushing?

Interro-negative form

Simple form	V-ing form
mustn't I push? mustn't you push? mustn't he push? mustn't we push? mustn't you push? mustn't they push?	mustn't I be pushing? mustn't you be pushing? mustn't he be pushing? mustn't we be pushing? mustn't you be pushing? mustn't they be pushing?
Perfect	V-ing perfect
mustn't I have pushed? mustn't you have pushed? mustn't he have pushed? mustn't we have pushed? mustn't you have pushed? mustn't they have pushed?	mustn't I have been pushing? mustn't you have been pushing? mustn't he have been pushing? mustn't we have been pushing? mustn't you have been pushing? mustn't they have been pushing?