Conjugación del verbo inglés
MUST UNFASTEN

Verbo regular: unfasten - unfastened - unfastened

Afirmación

Forma simple	Forma con V-ing
I must unfasten you must unfasten she must unfasten we must unfasten you must unfasten they must unfasten	I must be unfastening you must be unfastening she must be unfastening we must be unfastening you must be unfastening they must be unfastening
Perfecto	Perfecto con V-ing
I must have unfastened you must have unfastened she must have unfastened we must have unfastened you must have unfastened they must have unfastened	I must have been unfastening you must have been unfastening she must have been unfastening we must have been unfastening you must have been unfastening they must have been unfastening

Negación

Forma simple	Forma con V-ing
I must not unfasten you must not unfasten she must not unfasten we must not unfasten you must not unfasten they must not unfasten	I must not be unfastening you must not be unfastening she must not be unfastening we must not be unfastening you must not be unfastening they must not be unfastening
Perfecto	Perfecto con V-ing
I must not have unfastened you must not have unfastened she must not have unfastened we must not have unfastened you must not have unfastened they must not have unfastened	I must not have been unfastening you must not have been unfastening she must not have been unfastening we must not have been unfastening you must not have been unfastening they must not have been unfastening

Forma interrogativa

Forma simple	Forma con V-ing
must I unfasten? must you unfasten? must she unfasten? must we unfasten? must you unfasten? must they unfasten?	must I be unfastening? must you be unfastening? must she be unfastening? must we be unfastening? must you be unfastening? must they be unfastening?
Perfecto	Perfecto con V-ing
must I have unfastened? must you have unfastened? must she have unfastened? must we have unfastened? must you have unfastened? must they have unfastened?	must I have been unfastening? must you have been unfastening? must she have been unfastening? must we have been unfastening? must you have been unfastening? must they have been unfastening?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not unfasten? must you not unfasten? must she not unfasten? must we not unfasten? must you not unfasten? must they not unfasten?	must I not be unfastening? must you not be unfastening? must she not be unfastening? must we not be unfastening? must you not be unfastening? must they not be unfastening?
Perfecto	Perfecto con V-ing
must I not have unfastened? must you not have unfastened? must she not have unfastened? must we not have unfastened? must you not have unfastened? must they not have unfastened?	must I not have been unfastening? must you not have been unfastening? must she not have been unfastening? must we not have been unfastening? must you not have been unfastening? must they not have been unfastening?