Conjugación del verbo inglés
MUST SURFACE

Verbo regular: surface - surfaced - surfaced

Afirmación

Forma simple	Forma con V-ing
I must surface you must surface he must surface we must surface you must surface they must surface	I must be surfacing you must be surfacing he must be surfacing we must be surfacing you must be surfacing they must be surfacing
Perfecto	Perfecto con V-ing
I must have surfaced you must have surfaced he must have surfaced we must have surfaced you must have surfaced they must have surfaced	I must have been surfacing you must have been surfacing he must have been surfacing we must have been surfacing you must have been surfacing they must have been surfacing

Negación

Forma simple	Forma con V-ing
I must not surface you must not surface he must not surface we must not surface you must not surface they must not surface	I must not be surfacing you must not be surfacing he must not be surfacing we must not be surfacing you must not be surfacing they must not be surfacing
Perfecto	Perfecto con V-ing
I must not have surfaced you must not have surfaced he must not have surfaced we must not have surfaced you must not have surfaced they must not have surfaced	I must not have been surfacing you must not have been surfacing he must not have been surfacing we must not have been surfacing you must not have been surfacing they must not have been surfacing

Forma interrogativa

Forma simple	Forma con V-ing
must I surface? must you surface? must he surface? must we surface? must you surface? must they surface?	must I be surfacing? must you be surfacing? must he be surfacing? must we be surfacing? must you be surfacing? must they be surfacing?
Perfecto	Perfecto con V-ing
must I have surfaced? must you have surfaced? must he have surfaced? must we have surfaced? must you have surfaced? must they have surfaced?	must I have been surfacing? must you have been surfacing? must he have been surfacing? must we have been surfacing? must you have been surfacing? must they have been surfacing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not surface? must you not surface? must he not surface? must we not surface? must you not surface? must they not surface?	must I not be surfacing? must you not be surfacing? must he not be surfacing? must we not be surfacing? must you not be surfacing? must they not be surfacing?
Perfecto	Perfecto con V-ing
must I not have surfaced? must you not have surfaced? must he not have surfaced? must we not have surfaced? must you not have surfaced? must they not have surfaced?	must I not have been surfacing? must you not have been surfacing? must he not have been surfacing? must we not have been surfacing? must you not have been surfacing? must they not have been surfacing?