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 mustn't confuse you mustn't confuse he mustn't confuse we mustn't confuse you mustn't confuse they mustn't confuse	I mustn't be confusing you mustn't be confusing he mustn't be confusing we mustn't be confusing you mustn't be confusing they mustn't be confusing
Perfect	V-ing perfect
I mustn't have confused you mustn't have confused he mustn't have confused we mustn't have confused you mustn't have confused they mustn't have confused	I mustn't have been confusing you mustn't have been confusing he mustn't have been confusing we mustn't have been confusing you mustn't have been confusing they mustn't 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
mustn't I confuse? mustn't you confuse? mustn't he confuse? mustn't we confuse? mustn't you confuse? mustn't they confuse?	mustn't I be confusing? mustn't you be confusing? mustn't he be confusing? mustn't we be confusing? mustn't you be confusing? mustn't they be confusing?
Perfect	V-ing perfect
mustn't I have confused? mustn't you have confused? mustn't he have confused? mustn't we have confused? mustn't you have confused? mustn't they have confused?	mustn't I have been confusing? mustn't you have been confusing? mustn't he have been confusing? mustn't we have been confusing? mustn't you have been confusing? mustn't they have been confusing?