Conjugación del verbo inglés
MUST EXTEND

Verbo regular: extend - extended - extended

Afirmación

Forma simple	Forma con V-ing
I must extend you must extend he must extend we must extend you must extend they must extend	I must be extending you must be extending he must be extending we must be extending you must be extending they must be extending
Perfecto	Perfecto con V-ing
I must have extended you must have extended he must have extended we must have extended you must have extended they must have extended	I must have been extending you must have been extending he must have been extending we must have been extending you must have been extending they must have been extending

Negación

Forma simple	Forma con V-ing
I must not extend you must not extend he must not extend we must not extend you must not extend they must not extend	I must not be extending you must not be extending he must not be extending we must not be extending you must not be extending they must not be extending
Perfecto	Perfecto con V-ing
I must not have extended you must not have extended he must not have extended we must not have extended you must not have extended they must not have extended	I must not have been extending you must not have been extending he must not have been extending we must not have been extending you must not have been extending they must not have been extending

Forma interrogativa

Forma simple	Forma con V-ing
must I extend? must you extend? must he extend? must we extend? must you extend? must they extend?	must I be extending? must you be extending? must he be extending? must we be extending? must you be extending? must they be extending?
Perfecto	Perfecto con V-ing
must I have extended? must you have extended? must he have extended? must we have extended? must you have extended? must they have extended?	must I have been extending? must you have been extending? must he have been extending? must we have been extending? must you have been extending? must they have been extending?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not extend? must you not extend? must he not extend? must we not extend? must you not extend? must they not extend?	must I not be extending? must you not be extending? must he not be extending? must we not be extending? must you not be extending? must they not be extending?
Perfecto	Perfecto con V-ing
must I not have extended? must you not have extended? must he not have extended? must we not have extended? must you not have extended? must they not have extended?	must I not have been extending? must you not have been extending? must he not have been extending? must we not have been extending? must you not have been extending? must they not have been extending?