English verb conjugation
COULD PURPLE

Regular verb: purple - purpled - purpled

Affirmation

Simple form	V-ing form
I could purple you could purple she could purple we could purple you could purple they could purple	I could be purpling you could be purpling she could be purpling we could be purpling you could be purpling they could be purpling
Perfect	V-ing perfect
I could have purpled you could have purpled she could have purpled we could have purpled you could have purpled they could have purpled	I could have been purpling you could have been purpling she could have been purpling we could have been purpling you could have been purpling they could have been purpling

Negation

Simple form	V-ing form
I couldn't purple you couldn't purple she couldn't purple we couldn't purple you couldn't purple they couldn't purple	I couldn't be purpling you couldn't be purpling she couldn't be purpling we couldn't be purpling you couldn't be purpling they couldn't be purpling
Perfect	V-ing perfect
I couldn't have purpled you couldn't have purpled she couldn't have purpled we couldn't have purpled you couldn't have purpled they couldn't have purpled	I couldn't have been purpling you couldn't have been purpling she couldn't have been purpling we couldn't have been purpling you couldn't have been purpling they couldn't have been purpling

Interrogative form

Simple form	V-ing form
could I purple? could you purple? could she purple? could we purple? could you purple? could they purple?	could I be purpling? could you be purpling? could she be purpling? could we be purpling? could you be purpling? could they be purpling?
Perfect	V-ing perfect
could I have purpled? could you have purpled? could she have purpled? could we have purpled? could you have purpled? could they have purpled?	could I have been purpling? could you have been purpling? could she have been purpling? could we have been purpling? could you have been purpling? could they have been purpling?

Interro-negative form

Simple form	V-ing form
couldn't I purple? couldn't you purple? couldn't she purple? couldn't we purple? couldn't you purple? couldn't they purple?	couldn't I be purpling? couldn't you be purpling? couldn't she be purpling? couldn't we be purpling? couldn't you be purpling? couldn't they be purpling?
Perfect	V-ing perfect
couldn't I have purpled? couldn't you have purpled? couldn't she have purpled? couldn't we have purpled? couldn't you have purpled? couldn't they have purpled?	couldn't I have been purpling? couldn't you have been purpling? couldn't she have been purpling? couldn't we have been purpling? couldn't you have been purpling? couldn't they have been purpling?