Conjugación del verbo inglés
MUST FIFE

Verbo regular: fife - fifed - fifed

Afirmación

Forma simple	Forma con V-ing
I must fife you must fife she must fife we must fife you must fife they must fife	I must be fifing you must be fifing she must be fifing we must be fifing you must be fifing they must be fifing
Perfecto	Perfecto con V-ing
I must have fifed you must have fifed she must have fifed we must have fifed you must have fifed they must have fifed	I must have been fifing you must have been fifing she must have been fifing we must have been fifing you must have been fifing they must have been fifing

Negación

Forma simple	Forma con V-ing
I must not fife you must not fife she must not fife we must not fife you must not fife they must not fife	I must not be fifing you must not be fifing she must not be fifing we must not be fifing you must not be fifing they must not be fifing
Perfecto	Perfecto con V-ing
I must not have fifed you must not have fifed she must not have fifed we must not have fifed you must not have fifed they must not have fifed	I must not have been fifing you must not have been fifing she must not have been fifing we must not have been fifing you must not have been fifing they must not have been fifing

Forma interrogativa

Forma simple	Forma con V-ing
must I fife? must you fife? must she fife? must we fife? must you fife? must they fife?	must I be fifing? must you be fifing? must she be fifing? must we be fifing? must you be fifing? must they be fifing?
Perfecto	Perfecto con V-ing
must I have fifed? must you have fifed? must she have fifed? must we have fifed? must you have fifed? must they have fifed?	must I have been fifing? must you have been fifing? must she have been fifing? must we have been fifing? must you have been fifing? must they have been fifing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not fife? must you not fife? must she not fife? must we not fife? must you not fife? must they not fife?	must I not be fifing? must you not be fifing? must she not be fifing? must we not be fifing? must you not be fifing? must they not be fifing?
Perfecto	Perfecto con V-ing
must I not have fifed? must you not have fifed? must she not have fifed? must we not have fifed? must you not have fifed? must they not have fifed?	must I not have been fifing? must you not have been fifing? must she not have been fifing? must we not have been fifing? must you not have been fifing? must they not have been fifing?