English verb conjugation
COULD SOLIDIFY

Regular verb: solidify - solidified - solidified

Affirmation

Simple form	V-ing form
I could solidify you could solidify she could solidify we could solidify you could solidify they could solidify	I could be solidifying you could be solidifying she could be solidifying we could be solidifying you could be solidifying they could be solidifying
Perfect	V-ing perfect
I could have solidified you could have solidified she could have solidified we could have solidified you could have solidified they could have solidified	I could have been solidifying you could have been solidifying she could have been solidifying we could have been solidifying you could have been solidifying they could have been solidifying

Negation

Simple form	V-ing form
I couldn't solidify you couldn't solidify she couldn't solidify we couldn't solidify you couldn't solidify they couldn't solidify	I couldn't be solidifying you couldn't be solidifying she couldn't be solidifying we couldn't be solidifying you couldn't be solidifying they couldn't be solidifying
Perfect	V-ing perfect
I couldn't have solidified you couldn't have solidified she couldn't have solidified we couldn't have solidified you couldn't have solidified they couldn't have solidified	I couldn't have been solidifying you couldn't have been solidifying she couldn't have been solidifying we couldn't have been solidifying you couldn't have been solidifying they couldn't have been solidifying

Interrogative form

Simple form	V-ing form
could I solidify? could you solidify? could she solidify? could we solidify? could you solidify? could they solidify?	could I be solidifying? could you be solidifying? could she be solidifying? could we be solidifying? could you be solidifying? could they be solidifying?
Perfect	V-ing perfect
could I have solidified? could you have solidified? could she have solidified? could we have solidified? could you have solidified? could they have solidified?	could I have been solidifying? could you have been solidifying? could she have been solidifying? could we have been solidifying? could you have been solidifying? could they have been solidifying?

Interro-negative form

Simple form	V-ing form
couldn't I solidify? couldn't you solidify? couldn't she solidify? couldn't we solidify? couldn't you solidify? couldn't they solidify?	couldn't I be solidifying? couldn't you be solidifying? couldn't she be solidifying? couldn't we be solidifying? couldn't you be solidifying? couldn't they be solidifying?
Perfect	V-ing perfect
couldn't I have solidified? couldn't you have solidified? couldn't she have solidified? couldn't we have solidified? couldn't you have solidified? couldn't they have solidified?	couldn't I have been solidifying? couldn't you have been solidifying? couldn't she have been solidifying? couldn't we have been solidifying? couldn't you have been solidifying? couldn't they have been solidifying?