English verb conjugation
COULD PRETESTIFY

Regular verb: pretestify - pretestified - pretestified

Affirmation

Simple form	V-ing form
I could pretestify you could pretestify he could pretestify we could pretestify you could pretestify they could pretestify	I could be pretestifying you could be pretestifying he could be pretestifying we could be pretestifying you could be pretestifying they could be pretestifying
Perfect	V-ing perfect
I could have pretestified you could have pretestified he could have pretestified we could have pretestified you could have pretestified they could have pretestified	I could have been pretestifying you could have been pretestifying he could have been pretestifying we could have been pretestifying you could have been pretestifying they could have been pretestifying

Negation

Simple form	V-ing form
I could not pretestify you could not pretestify he could not pretestify we could not pretestify you could not pretestify they could not pretestify	I could not be pretestifying you could not be pretestifying he could not be pretestifying we could not be pretestifying you could not be pretestifying they could not be pretestifying
Perfect	V-ing perfect
I could not have pretestified you could not have pretestified he could not have pretestified we could not have pretestified you could not have pretestified they could not have pretestified	I could not have been pretestifying you could not have been pretestifying he could not have been pretestifying we could not have been pretestifying you could not have been pretestifying they could not have been pretestifying

Interrogative form

Simple form	V-ing form
could I pretestify? could you pretestify? could he pretestify? could we pretestify? could you pretestify? could they pretestify?	could I be pretestifying? could you be pretestifying? could he be pretestifying? could we be pretestifying? could you be pretestifying? could they be pretestifying?
Perfect	V-ing perfect
could I have pretestified? could you have pretestified? could he have pretestified? could we have pretestified? could you have pretestified? could they have pretestified?	could I have been pretestifying? could you have been pretestifying? could he have been pretestifying? could we have been pretestifying? could you have been pretestifying? could they have been pretestifying?

Interro-negative form

Simple form	V-ing form
could I not pretestify? could you not pretestify? could he not pretestify? could we not pretestify? could you not pretestify? could they not pretestify?	could I not be pretestifying? could you not be pretestifying? could he not be pretestifying? could we not be pretestifying? could you not be pretestifying? could they not be pretestifying?
Perfect	V-ing perfect
could I not have pretestified? could you not have pretestified? could he not have pretestified? could we not have pretestified? could you not have pretestified? could they not have pretestified?	could I not have been pretestifying? could you not have been pretestifying? could he not have been pretestifying? could we not have been pretestifying? could you not have been pretestifying? could they not have been pretestifying?