English verb conjugation
COULD MAP

Regular verb: map - mapped - mapped

Affirmation

Simple form	V-ing form
I could map you could map she could map we could map you could map they could map	I could be mapping you could be mapping she could be mapping we could be mapping you could be mapping they could be mapping
Perfect	V-ing perfect
I could have mapped you could have mapped she could have mapped we could have mapped you could have mapped they could have mapped	I could have been mapping you could have been mapping she could have been mapping we could have been mapping you could have been mapping they could have been mapping

Negation

Simple form	V-ing form
I couldn't map you couldn't map she couldn't map we couldn't map you couldn't map they couldn't map	I couldn't be mapping you couldn't be mapping she couldn't be mapping we couldn't be mapping you couldn't be mapping they couldn't be mapping
Perfect	V-ing perfect
I couldn't have mapped you couldn't have mapped she couldn't have mapped we couldn't have mapped you couldn't have mapped they couldn't have mapped	I couldn't have been mapping you couldn't have been mapping she couldn't have been mapping we couldn't have been mapping you couldn't have been mapping they couldn't have been mapping

Interrogative form

Simple form	V-ing form
could I map? could you map? could she map? could we map? could you map? could they map?	could I be mapping? could you be mapping? could she be mapping? could we be mapping? could you be mapping? could they be mapping?
Perfect	V-ing perfect
could I have mapped? could you have mapped? could she have mapped? could we have mapped? could you have mapped? could they have mapped?	could I have been mapping? could you have been mapping? could she have been mapping? could we have been mapping? could you have been mapping? could they have been mapping?

Interro-negative form

Simple form	V-ing form
couldn't I map? couldn't you map? couldn't she map? couldn't we map? couldn't you map? couldn't they map?	couldn't I be mapping? couldn't you be mapping? couldn't she be mapping? couldn't we be mapping? couldn't you be mapping? couldn't they be mapping?
Perfect	V-ing perfect
couldn't I have mapped? couldn't you have mapped? couldn't she have mapped? couldn't we have mapped? couldn't you have mapped? couldn't they have mapped?	couldn't I have been mapping? couldn't you have been mapping? couldn't she have been mapping? couldn't we have been mapping? couldn't you have been mapping? couldn't they have been mapping?