English verb conjugation
COULD RED-PENCIL

Regular verb: red-pencil - red-penciled - red-penciled

Affirmation

Simple form	V-ing form
I could red-pencil you could red-pencil he could red-pencil we could red-pencil you could red-pencil they could red-pencil	I could be red-penciling you could be red-penciling he could be red-penciling we could be red-penciling you could be red-penciling they could be red-penciling
Perfect	V-ing perfect
I could have red-penciled you could have red-penciled he could have red-penciled we could have red-penciled you could have red-penciled they could have red-penciled	I could have been red-penciling you could have been red-penciling he could have been red-penciling we could have been red-penciling you could have been red-penciling they could have been red-penciling

Negation

Simple form	V-ing form
I couldn't red-pencil you couldn't red-pencil he couldn't red-pencil we couldn't red-pencil you couldn't red-pencil they couldn't red-pencil	I couldn't be red-penciling you couldn't be red-penciling he couldn't be red-penciling we couldn't be red-penciling you couldn't be red-penciling they couldn't be red-penciling
Perfect	V-ing perfect
I couldn't have red-penciled you couldn't have red-penciled he couldn't have red-penciled we couldn't have red-penciled you couldn't have red-penciled they couldn't have red-penciled	I couldn't have been red-penciling you couldn't have been red-penciling he couldn't have been red-penciling we couldn't have been red-penciling you couldn't have been red-penciling they couldn't have been red-penciling

Interrogative form

Simple form	V-ing form
could I red-pencil? could you red-pencil? could he red-pencil? could we red-pencil? could you red-pencil? could they red-pencil?	could I be red-penciling? could you be red-penciling? could he be red-penciling? could we be red-penciling? could you be red-penciling? could they be red-penciling?
Perfect	V-ing perfect
could I have red-penciled? could you have red-penciled? could he have red-penciled? could we have red-penciled? could you have red-penciled? could they have red-penciled?	could I have been red-penciling? could you have been red-penciling? could he have been red-penciling? could we have been red-penciling? could you have been red-penciling? could they have been red-penciling?

Interro-negative form

Simple form	V-ing form
couldn't I red-pencil? couldn't you red-pencil? couldn't he red-pencil? couldn't we red-pencil? couldn't you red-pencil? couldn't they red-pencil?	couldn't I be red-penciling? couldn't you be red-penciling? couldn't he be red-penciling? couldn't we be red-penciling? couldn't you be red-penciling? couldn't they be red-penciling?
Perfect	V-ing perfect
couldn't I have red-penciled? couldn't you have red-penciled? couldn't he have red-penciled? couldn't we have red-penciled? couldn't you have red-penciled? couldn't they have red-penciled?	couldn't I have been red-penciling? couldn't you have been red-penciling? couldn't he have been red-penciling? couldn't we have been red-penciling? couldn't you have been red-penciling? couldn't they have been red-penciling?