English verb conjugation
COULD DESCANT

Regular verb: descant - descanted - descanted

Affirmation

Simple form	V-ing form
I could descant you could descant he could descant we could descant you could descant they could descant	I could be descanting you could be descanting he could be descanting we could be descanting you could be descanting they could be descanting
Perfect	V-ing perfect
I could have descanted you could have descanted he could have descanted we could have descanted you could have descanted they could have descanted	I could have been descanting you could have been descanting he could have been descanting we could have been descanting you could have been descanting they could have been descanting

Negation

Simple form	V-ing form
I couldn't descant you couldn't descant he couldn't descant we couldn't descant you couldn't descant they couldn't descant	I couldn't be descanting you couldn't be descanting he couldn't be descanting we couldn't be descanting you couldn't be descanting they couldn't be descanting
Perfect	V-ing perfect
I couldn't have descanted you couldn't have descanted he couldn't have descanted we couldn't have descanted you couldn't have descanted they couldn't have descanted	I couldn't have been descanting you couldn't have been descanting he couldn't have been descanting we couldn't have been descanting you couldn't have been descanting they couldn't have been descanting

Interrogative form

Simple form	V-ing form
could I descant? could you descant? could he descant? could we descant? could you descant? could they descant?	could I be descanting? could you be descanting? could he be descanting? could we be descanting? could you be descanting? could they be descanting?
Perfect	V-ing perfect
could I have descanted? could you have descanted? could he have descanted? could we have descanted? could you have descanted? could they have descanted?	could I have been descanting? could you have been descanting? could he have been descanting? could we have been descanting? could you have been descanting? could they have been descanting?

Interro-negative form

Simple form	V-ing form
couldn't I descant? couldn't you descant? couldn't he descant? couldn't we descant? couldn't you descant? couldn't they descant?	couldn't I be descanting? couldn't you be descanting? couldn't he be descanting? couldn't we be descanting? couldn't you be descanting? couldn't they be descanting?
Perfect	V-ing perfect
couldn't I have descanted? couldn't you have descanted? couldn't he have descanted? couldn't we have descanted? couldn't you have descanted? couldn't they have descanted?	couldn't I have been descanting? couldn't you have been descanting? couldn't he have been descanting? couldn't we have been descanting? couldn't you have been descanting? couldn't they have been descanting?