English verb conjugation
COULD PHOTOSCAN

Regular verb: photoscan - photoscaned - photoscaned

Affirmation

Simple form	V-ing form
I could photoscan you could photoscan she could photoscan we could photoscan you could photoscan they could photoscan	I could be photoscaning you could be photoscaning she could be photoscaning we could be photoscaning you could be photoscaning they could be photoscaning
Perfect	V-ing perfect
I could have photoscaned you could have photoscaned she could have photoscaned we could have photoscaned you could have photoscaned they could have photoscaned	I could have been photoscaning you could have been photoscaning she could have been photoscaning we could have been photoscaning you could have been photoscaning they could have been photoscaning

Negation

Simple form	V-ing form
I couldn't photoscan you couldn't photoscan she couldn't photoscan we couldn't photoscan you couldn't photoscan they couldn't photoscan	I couldn't be photoscaning you couldn't be photoscaning she couldn't be photoscaning we couldn't be photoscaning you couldn't be photoscaning they couldn't be photoscaning
Perfect	V-ing perfect
I couldn't have photoscaned you couldn't have photoscaned she couldn't have photoscaned we couldn't have photoscaned you couldn't have photoscaned they couldn't have photoscaned	I couldn't have been photoscaning you couldn't have been photoscaning she couldn't have been photoscaning we couldn't have been photoscaning you couldn't have been photoscaning they couldn't have been photoscaning

Interrogative form

Simple form	V-ing form
could I photoscan? could you photoscan? could she photoscan? could we photoscan? could you photoscan? could they photoscan?	could I be photoscaning? could you be photoscaning? could she be photoscaning? could we be photoscaning? could you be photoscaning? could they be photoscaning?
Perfect	V-ing perfect
could I have photoscaned? could you have photoscaned? could she have photoscaned? could we have photoscaned? could you have photoscaned? could they have photoscaned?	could I have been photoscaning? could you have been photoscaning? could she have been photoscaning? could we have been photoscaning? could you have been photoscaning? could they have been photoscaning?

Interro-negative form

Simple form	V-ing form
couldn't I photoscan? couldn't you photoscan? couldn't she photoscan? couldn't we photoscan? couldn't you photoscan? couldn't they photoscan?	couldn't I be photoscaning? couldn't you be photoscaning? couldn't she be photoscaning? couldn't we be photoscaning? couldn't you be photoscaning? couldn't they be photoscaning?
Perfect	V-ing perfect
couldn't I have photoscaned? couldn't you have photoscaned? couldn't she have photoscaned? couldn't we have photoscaned? couldn't you have photoscaned? couldn't they have photoscaned?	couldn't I have been photoscaning? couldn't you have been photoscaning? couldn't she have been photoscaning? couldn't we have been photoscaning? couldn't you have been photoscaning? couldn't they have been photoscaning?