English verb conjugation
COULD RIGIDIFY

Regular verb: rigidify - rigidified - rigidified

Affirmation

Simple form	V-ing form
I could rigidify you could rigidify she could rigidify we could rigidify you could rigidify they could rigidify	I could be rigidifying you could be rigidifying she could be rigidifying we could be rigidifying you could be rigidifying they could be rigidifying
Perfect	V-ing perfect
I could have rigidified you could have rigidified she could have rigidified we could have rigidified you could have rigidified they could have rigidified	I could have been rigidifying you could have been rigidifying she could have been rigidifying we could have been rigidifying you could have been rigidifying they could have been rigidifying

Negation

Simple form	V-ing form
I couldn't rigidify you couldn't rigidify she couldn't rigidify we couldn't rigidify you couldn't rigidify they couldn't rigidify	I couldn't be rigidifying you couldn't be rigidifying she couldn't be rigidifying we couldn't be rigidifying you couldn't be rigidifying they couldn't be rigidifying
Perfect	V-ing perfect
I couldn't have rigidified you couldn't have rigidified she couldn't have rigidified we couldn't have rigidified you couldn't have rigidified they couldn't have rigidified	I couldn't have been rigidifying you couldn't have been rigidifying she couldn't have been rigidifying we couldn't have been rigidifying you couldn't have been rigidifying they couldn't have been rigidifying

Interrogative form

Simple form	V-ing form
could I rigidify? could you rigidify? could she rigidify? could we rigidify? could you rigidify? could they rigidify?	could I be rigidifying? could you be rigidifying? could she be rigidifying? could we be rigidifying? could you be rigidifying? could they be rigidifying?
Perfect	V-ing perfect
could I have rigidified? could you have rigidified? could she have rigidified? could we have rigidified? could you have rigidified? could they have rigidified?	could I have been rigidifying? could you have been rigidifying? could she have been rigidifying? could we have been rigidifying? could you have been rigidifying? could they have been rigidifying?

Interro-negative form

Simple form	V-ing form
couldn't I rigidify? couldn't you rigidify? couldn't she rigidify? couldn't we rigidify? couldn't you rigidify? couldn't they rigidify?	couldn't I be rigidifying? couldn't you be rigidifying? couldn't she be rigidifying? couldn't we be rigidifying? couldn't you be rigidifying? couldn't they be rigidifying?
Perfect	V-ing perfect
couldn't I have rigidified? couldn't you have rigidified? couldn't she have rigidified? couldn't we have rigidified? couldn't you have rigidified? couldn't they have rigidified?	couldn't I have been rigidifying? couldn't you have been rigidifying? couldn't she have been rigidifying? couldn't we have been rigidifying? couldn't you have been rigidifying? couldn't they have been rigidifying?