English verb conjugation
MUST FOREFEND

Regular verb: forefend - forefended - forefended

Affirmation

Simple form	V-ing form
I must forefend you must forefend he must forefend we must forefend you must forefend they must forefend	I must be forefending you must be forefending he must be forefending we must be forefending you must be forefending they must be forefending
Perfect	V-ing perfect
I must have forefended you must have forefended he must have forefended we must have forefended you must have forefended they must have forefended	I must have been forefending you must have been forefending he must have been forefending we must have been forefending you must have been forefending they must have been forefending

Negation

Simple form	V-ing form
I mustn't forefend you mustn't forefend he mustn't forefend we mustn't forefend you mustn't forefend they mustn't forefend	I mustn't be forefending you mustn't be forefending he mustn't be forefending we mustn't be forefending you mustn't be forefending they mustn't be forefending
Perfect	V-ing perfect
I mustn't have forefended you mustn't have forefended he mustn't have forefended we mustn't have forefended you mustn't have forefended they mustn't have forefended	I mustn't have been forefending you mustn't have been forefending he mustn't have been forefending we mustn't have been forefending you mustn't have been forefending they mustn't have been forefending

Interrogative form

Simple form	V-ing form
must I forefend? must you forefend? must he forefend? must we forefend? must you forefend? must they forefend?	must I be forefending? must you be forefending? must he be forefending? must we be forefending? must you be forefending? must they be forefending?
Perfect	V-ing perfect
must I have forefended? must you have forefended? must he have forefended? must we have forefended? must you have forefended? must they have forefended?	must I have been forefending? must you have been forefending? must he have been forefending? must we have been forefending? must you have been forefending? must they have been forefending?

Interro-negative form

Simple form	V-ing form
mustn't I forefend? mustn't you forefend? mustn't he forefend? mustn't we forefend? mustn't you forefend? mustn't they forefend?	mustn't I be forefending? mustn't you be forefending? mustn't he be forefending? mustn't we be forefending? mustn't you be forefending? mustn't they be forefending?
Perfect	V-ing perfect
mustn't I have forefended? mustn't you have forefended? mustn't he have forefended? mustn't we have forefended? mustn't you have forefended? mustn't they have forefended?	mustn't I have been forefending? mustn't you have been forefending? mustn't he have been forefending? mustn't we have been forefending? mustn't you have been forefending? mustn't they have been forefending?