English verb conjugation
CAN ETCH

Regular verb: etch - etched - etched

Affirmation

Simple form	V-ing form
I can etch you can etch she can etch we can etch you can etch they can etch	I can be etching you can be etching she can be etching we can be etching you can be etching they can be etching
Perfect	V-ing perfect
I can have etched you can have etched she can have etched we can have etched you can have etched they can have etched	I can have been etching you can have been etching she can have been etching we can have been etching you can have been etching they can have been etching

Negation

Simple form	V-ing form
I can't etch you can't etch she can't etch we can't etch you can't etch they can't etch	I can't be etching you can't be etching she can't be etching we can't be etching you can't be etching they can't be etching
Perfect	V-ing perfect
I can't have etched you can't have etched she can't have etched we can't have etched you can't have etched they can't have etched	I can't have been etching you can't have been etching she can't have been etching we can't have been etching you can't have been etching they can't have been etching

Interrogative form

Simple form	V-ing form
can I etch? can you etch? can she etch? can we etch? can you etch? can they etch?	can I be etching? can you be etching? can she be etching? can we be etching? can you be etching? can they be etching?
Perfect	V-ing perfect
can I have etched? can you have etched? can she have etched? can we have etched? can you have etched? can they have etched?	can I have been etching? can you have been etching? can she have been etching? can we have been etching? can you have been etching? can they have been etching?

Interro-negative form

Simple form	V-ing form
can't I etch? can't you etch? can't she etch? can't we etch? can't you etch? can't they etch?	can't I be etching? can't you be etching? can't she be etching? can't we be etching? can't you be etching? can't they be etching?
Perfect	V-ing perfect
can't I have etched? can't you have etched? can't she have etched? can't we have etched? can't you have etched? can't they have etched?	can't I have been etching? can't you have been etching? can't she have been etching? can't we have been etching? can't you have been etching? can't they have been etching?