English verb conjugation
COULD CLARIFY

Regular verb: clarify - clarified - clarified

Affirmation

Simple form	V-ing form
I could clarify you could clarify he could clarify we could clarify you could clarify they could clarify	I could be clarifying you could be clarifying he could be clarifying we could be clarifying you could be clarifying they could be clarifying
Perfect	V-ing perfect
I could have clarified you could have clarified he could have clarified we could have clarified you could have clarified they could have clarified	I could have been clarifying you could have been clarifying he could have been clarifying we could have been clarifying you could have been clarifying they could have been clarifying

Negation

Simple form	V-ing form
I could not clarify you could not clarify he could not clarify we could not clarify you could not clarify they could not clarify	I could not be clarifying you could not be clarifying he could not be clarifying we could not be clarifying you could not be clarifying they could not be clarifying
Perfect	V-ing perfect
I could not have clarified you could not have clarified he could not have clarified we could not have clarified you could not have clarified they could not have clarified	I could not have been clarifying you could not have been clarifying he could not have been clarifying we could not have been clarifying you could not have been clarifying they could not have been clarifying

Interrogative form

Simple form	V-ing form
could I clarify? could you clarify? could he clarify? could we clarify? could you clarify? could they clarify?	could I be clarifying? could you be clarifying? could he be clarifying? could we be clarifying? could you be clarifying? could they be clarifying?
Perfect	V-ing perfect
could I have clarified? could you have clarified? could he have clarified? could we have clarified? could you have clarified? could they have clarified?	could I have been clarifying? could you have been clarifying? could he have been clarifying? could we have been clarifying? could you have been clarifying? could they have been clarifying?

Interro-negative form

Simple form	V-ing form
could I not clarify? could you not clarify? could he not clarify? could we not clarify? could you not clarify? could they not clarify?	could I not be clarifying? could you not be clarifying? could he not be clarifying? could we not be clarifying? could you not be clarifying? could they not be clarifying?
Perfect	V-ing perfect
could I not have clarified? could you not have clarified? could he not have clarified? could we not have clarified? could you not have clarified? could they not have clarified?	could I not have been clarifying? could you not have been clarifying? could he not have been clarifying? could we not have been clarifying? could you not have been clarifying? could they not have been clarifying?