English verb conjugation
MUST CONFUSE

Regular verb: confuse - confused - confused

Affirmation

Simple form	V-ing form
I must confuse you must confuse he must confuse we must confuse you must confuse they must confuse	I must be confusing you must be confusing he must be confusing we must be confusing you must be confusing they must be confusing
Perfect	V-ing perfect
I must have confused you must have confused he must have confused we must have confused you must have confused they must have confused	I must have been confusing you must have been confusing he must have been confusing we must have been confusing you must have been confusing they must have been confusing

Negation

Simple form	V-ing form
I must not confuse you must not confuse he must not confuse we must not confuse you must not confuse they must not confuse	I must not be confusing you must not be confusing he must not be confusing we must not be confusing you must not be confusing they must not be confusing
Perfect	V-ing perfect
I must not have confused you must not have confused he must not have confused we must not have confused you must not have confused they must not have confused	I must not have been confusing you must not have been confusing he must not have been confusing we must not have been confusing you must not have been confusing they must not have been confusing

Interrogative form

Simple form	V-ing form
must I confuse? must you confuse? must he confuse? must we confuse? must you confuse? must they confuse?	must I be confusing? must you be confusing? must he be confusing? must we be confusing? must you be confusing? must they be confusing?
Perfect	V-ing perfect
must I have confused? must you have confused? must he have confused? must we have confused? must you have confused? must they have confused?	must I have been confusing? must you have been confusing? must he have been confusing? must we have been confusing? must you have been confusing? must they have been confusing?

Interro-negative form

Simple form	V-ing form
must I not confuse? must you not confuse? must he not confuse? must we not confuse? must you not confuse? must they not confuse?	must I not be confusing? must you not be confusing? must he not be confusing? must we not be confusing? must you not be confusing? must they not be confusing?
Perfect	V-ing perfect
must I not have confused? must you not have confused? must he not have confused? must we not have confused? must you not have confused? must they not have confused?	must I not have been confusing? must you not have been confusing? must he not have been confusing? must we not have been confusing? must you not have been confusing? must they not have been confusing?