English verb conjugation
MUST POOH-POOH

Regular verb: pooh-pooh - pooh-poohed - pooh-poohed

Affirmation

Simple form	V-ing form
I must pooh-pooh you must pooh-pooh he must pooh-pooh we must pooh-pooh you must pooh-pooh they must pooh-pooh	I must be pooh-poohing you must be pooh-poohing he must be pooh-poohing we must be pooh-poohing you must be pooh-poohing they must be pooh-poohing
Perfect	V-ing perfect
I must have pooh-poohed you must have pooh-poohed he must have pooh-poohed we must have pooh-poohed you must have pooh-poohed they must have pooh-poohed	I must have been pooh-poohing you must have been pooh-poohing he must have been pooh-poohing we must have been pooh-poohing you must have been pooh-poohing they must have been pooh-poohing

Negation

Simple form	V-ing form
I mustn't pooh-pooh you mustn't pooh-pooh he mustn't pooh-pooh we mustn't pooh-pooh you mustn't pooh-pooh they mustn't pooh-pooh	I mustn't be pooh-poohing you mustn't be pooh-poohing he mustn't be pooh-poohing we mustn't be pooh-poohing you mustn't be pooh-poohing they mustn't be pooh-poohing
Perfect	V-ing perfect
I mustn't have pooh-poohed you mustn't have pooh-poohed he mustn't have pooh-poohed we mustn't have pooh-poohed you mustn't have pooh-poohed they mustn't have pooh-poohed	I mustn't have been pooh-poohing you mustn't have been pooh-poohing he mustn't have been pooh-poohing we mustn't have been pooh-poohing you mustn't have been pooh-poohing they mustn't have been pooh-poohing

Interrogative form

Simple form	V-ing form
must I pooh-pooh? must you pooh-pooh? must he pooh-pooh? must we pooh-pooh? must you pooh-pooh? must they pooh-pooh?	must I be pooh-poohing? must you be pooh-poohing? must he be pooh-poohing? must we be pooh-poohing? must you be pooh-poohing? must they be pooh-poohing?
Perfect	V-ing perfect
must I have pooh-poohed? must you have pooh-poohed? must he have pooh-poohed? must we have pooh-poohed? must you have pooh-poohed? must they have pooh-poohed?	must I have been pooh-poohing? must you have been pooh-poohing? must he have been pooh-poohing? must we have been pooh-poohing? must you have been pooh-poohing? must they have been pooh-poohing?

Interro-negative form

Simple form	V-ing form
mustn't I pooh-pooh? mustn't you pooh-pooh? mustn't he pooh-pooh? mustn't we pooh-pooh? mustn't you pooh-pooh? mustn't they pooh-pooh?	mustn't I be pooh-poohing? mustn't you be pooh-poohing? mustn't he be pooh-poohing? mustn't we be pooh-poohing? mustn't you be pooh-poohing? mustn't they be pooh-poohing?
Perfect	V-ing perfect
mustn't I have pooh-poohed? mustn't you have pooh-poohed? mustn't he have pooh-poohed? mustn't we have pooh-poohed? mustn't you have pooh-poohed? mustn't they have pooh-poohed?	mustn't I have been pooh-poohing? mustn't you have been pooh-poohing? mustn't he have been pooh-poohing? mustn't we have been pooh-poohing? mustn't you have been pooh-poohing? mustn't they have been pooh-poohing?