English verb conjugation
MUST BREAST-FEED

Irregular verb: breast-feed - breast-fed - breast-fed

Affirmation

Simple form	V-ing form
I must breast-feed you must breast-feed he must breast-feed we must breast-feed you must breast-feed they must breast-feed	I must be breast-feeding you must be breast-feeding he must be breast-feeding we must be breast-feeding you must be breast-feeding they must be breast-feeding
Perfect	V-ing perfect
I must have breast-fed you must have breast-fed he must have breast-fed we must have breast-fed you must have breast-fed they must have breast-fed	I must have been breast-feeding you must have been breast-feeding he must have been breast-feeding we must have been breast-feeding you must have been breast-feeding they must have been breast-feeding

Negation

Simple form	V-ing form
I must not breast-feed you must not breast-feed he must not breast-feed we must not breast-feed you must not breast-feed they must not breast-feed	I must not be breast-feeding you must not be breast-feeding he must not be breast-feeding we must not be breast-feeding you must not be breast-feeding they must not be breast-feeding
Perfect	V-ing perfect
I must not have breast-fed you must not have breast-fed he must not have breast-fed we must not have breast-fed you must not have breast-fed they must not have breast-fed	I must not have been breast-feeding you must not have been breast-feeding he must not have been breast-feeding we must not have been breast-feeding you must not have been breast-feeding they must not have been breast-feeding

Interrogative form

Simple form	V-ing form
must I breast-feed? must you breast-feed? must he breast-feed? must we breast-feed? must you breast-feed? must they breast-feed?	must I be breast-feeding? must you be breast-feeding? must he be breast-feeding? must we be breast-feeding? must you be breast-feeding? must they be breast-feeding?
Perfect	V-ing perfect
must I have breast-fed? must you have breast-fed? must he have breast-fed? must we have breast-fed? must you have breast-fed? must they have breast-fed?	must I have been breast-feeding? must you have been breast-feeding? must he have been breast-feeding? must we have been breast-feeding? must you have been breast-feeding? must they have been breast-feeding?

Interro-negative form

Simple form	V-ing form
must I not breast-feed? must you not breast-feed? must he not breast-feed? must we not breast-feed? must you not breast-feed? must they not breast-feed?	must I not be breast-feeding? must you not be breast-feeding? must he not be breast-feeding? must we not be breast-feeding? must you not be breast-feeding? must they not be breast-feeding?
Perfect	V-ing perfect
must I not have breast-fed? must you not have breast-fed? must he not have breast-fed? must we not have breast-fed? must you not have breast-fed? must they not have breast-fed?	must I not have been breast-feeding? must you not have been breast-feeding? must he not have been breast-feeding? must we not have been breast-feeding? must you not have been breast-feeding? must they not have been breast-feeding?