English verb conjugation
MUST POOH

Regular verb: pooh - poohed - poohed

Affirmation

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

Negation

Simple form	V-ing form
I must not pooh you must not pooh he must not pooh we must not pooh you must not pooh they must not pooh	I must not be poohing you must not be poohing he must not be poohing we must not be poohing you must not be poohing they must not be poohing
Perfect	V-ing perfect
I must not have poohed you must not have poohed he must not have poohed we must not have poohed you must not have poohed they must not have poohed	I must not have been poohing you must not have been poohing he must not have been poohing we must not have been poohing you must not have been poohing they must not have been poohing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not pooh? must you not pooh? must he not pooh? must we not pooh? must you not pooh? must they not pooh?	must I not be poohing? must you not be poohing? must he not be poohing? must we not be poohing? must you not be poohing? must they not be poohing?
Perfect	V-ing perfect
must I not have poohed? must you not have poohed? must he not have poohed? must we not have poohed? must you not have poohed? must they not have poohed?	must I not have been poohing? must you not have been poohing? must he not have been poohing? must we not have been poohing? must you not have been poohing? must they not have been poohing?