Conjugación del verbo inglés
MUST ETCH

Verbo regular: etch - etched - etched

Afirmación

Forma simple	Forma con V-ing
I must etch you must etch she must etch we must etch you must etch they must etch	I must be etching you must be etching she must be etching we must be etching you must be etching they must be etching
Perfecto	Perfecto con V-ing
I must have etched you must have etched she must have etched we must have etched you must have etched they must have etched	I must have been etching you must have been etching she must have been etching we must have been etching you must have been etching they must have been etching

Negación

Forma simple	Forma con V-ing
I must not etch you must not etch she must not etch we must not etch you must not etch they must not etch	I must not be etching you must not be etching she must not be etching we must not be etching you must not be etching they must not be etching
Perfecto	Perfecto con V-ing
I must not have etched you must not have etched she must not have etched we must not have etched you must not have etched they must not have etched	I must not have been etching you must not have been etching she must not have been etching we must not have been etching you must not have been etching they must not have been etching

Forma interrogativa

Forma simple	Forma con V-ing
must I etch? must you etch? must she etch? must we etch? must you etch? must they etch?	must I be etching? must you be etching? must she be etching? must we be etching? must you be etching? must they be etching?
Perfecto	Perfecto con V-ing
must I have etched? must you have etched? must she have etched? must we have etched? must you have etched? must they have etched?	must I have been etching? must you have been etching? must she have been etching? must we have been etching? must you have been etching? must they have been etching?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not etch? must you not etch? must she not etch? must we not etch? must you not etch? must they not etch?	must I not be etching? must you not be etching? must she not be etching? must we not be etching? must you not be etching? must they not be etching?
Perfecto	Perfecto con V-ing
must I not have etched? must you not have etched? must she not have etched? must we not have etched? must you not have etched? must they not have etched?	must I not have been etching? must you not have been etching? must she not have been etching? must we not have been etching? must you not have been etching? must they not have been etching?