English verb conjugation
COULD CODIFY

Regular verb: codify - codified - codified

Affirmation

Simple form	V-ing form
I could codify you could codify he could codify we could codify you could codify they could codify	I could be codifying you could be codifying he could be codifying we could be codifying you could be codifying they could be codifying
Perfect	V-ing perfect
I could have codified you could have codified he could have codified we could have codified you could have codified they could have codified	I could have been codifying you could have been codifying he could have been codifying we could have been codifying you could have been codifying they could have been codifying

Negation

Simple form	V-ing form
I could not codify you could not codify he could not codify we could not codify you could not codify they could not codify	I could not be codifying you could not be codifying he could not be codifying we could not be codifying you could not be codifying they could not be codifying
Perfect	V-ing perfect
I could not have codified you could not have codified he could not have codified we could not have codified you could not have codified they could not have codified	I could not have been codifying you could not have been codifying he could not have been codifying we could not have been codifying you could not have been codifying they could not have been codifying

Interrogative form

Simple form	V-ing form
could I codify? could you codify? could he codify? could we codify? could you codify? could they codify?	could I be codifying? could you be codifying? could he be codifying? could we be codifying? could you be codifying? could they be codifying?
Perfect	V-ing perfect
could I have codified? could you have codified? could he have codified? could we have codified? could you have codified? could they have codified?	could I have been codifying? could you have been codifying? could he have been codifying? could we have been codifying? could you have been codifying? could they have been codifying?

Interro-negative form

Simple form	V-ing form
could I not codify? could you not codify? could he not codify? could we not codify? could you not codify? could they not codify?	could I not be codifying? could you not be codifying? could he not be codifying? could we not be codifying? could you not be codifying? could they not be codifying?
Perfect	V-ing perfect
could I not have codified? could you not have codified? could he not have codified? could we not have codified? could you not have codified? could they not have codified?	could I not have been codifying? could you not have been codifying? could he not have been codifying? could we not have been codifying? could you not have been codifying? could they not have been codifying?