English verb conjugation
COULD UNRAVEL

Regular verb: unravel - unravelled - unravelled

Affirmation

Simple form	V-ing form
I could unravel you could unravel he could unravel we could unravel you could unravel they could unravel	I could be unravelling you could be unravelling he could be unravelling we could be unravelling you could be unravelling they could be unravelling
Perfect	V-ing perfect
I could have unravelled you could have unravelled he could have unravelled we could have unravelled you could have unravelled they could have unravelled	I could have been unravelling you could have been unravelling he could have been unravelling we could have been unravelling you could have been unravelling they could have been unravelling

Negation

Simple form	V-ing form
I couldn't unravel you couldn't unravel he couldn't unravel we couldn't unravel you couldn't unravel they couldn't unravel	I couldn't be unravelling you couldn't be unravelling he couldn't be unravelling we couldn't be unravelling you couldn't be unravelling they couldn't be unravelling
Perfect	V-ing perfect
I couldn't have unravelled you couldn't have unravelled he couldn't have unravelled we couldn't have unravelled you couldn't have unravelled they couldn't have unravelled	I couldn't have been unravelling you couldn't have been unravelling he couldn't have been unravelling we couldn't have been unravelling you couldn't have been unravelling they couldn't have been unravelling

Interrogative form

Simple form	V-ing form
could I unravel? could you unravel? could he unravel? could we unravel? could you unravel? could they unravel?	could I be unravelling? could you be unravelling? could he be unravelling? could we be unravelling? could you be unravelling? could they be unravelling?
Perfect	V-ing perfect
could I have unravelled? could you have unravelled? could he have unravelled? could we have unravelled? could you have unravelled? could they have unravelled?	could I have been unravelling? could you have been unravelling? could he have been unravelling? could we have been unravelling? could you have been unravelling? could they have been unravelling?

Interro-negative form

Simple form	V-ing form
couldn't I unravel? couldn't you unravel? couldn't he unravel? couldn't we unravel? couldn't you unravel? couldn't they unravel?	couldn't I be unravelling? couldn't you be unravelling? couldn't he be unravelling? couldn't we be unravelling? couldn't you be unravelling? couldn't they be unravelling?
Perfect	V-ing perfect
couldn't I have unravelled? couldn't you have unravelled? couldn't he have unravelled? couldn't we have unravelled? couldn't you have unravelled? couldn't they have unravelled?	couldn't I have been unravelling? couldn't you have been unravelling? couldn't he have been unravelling? couldn't we have been unravelling? couldn't you have been unravelling? couldn't they have been unravelling?