English verb conjugation
COULD UNCLASP

Regular verb: unclasp - unclasped - unclasped

Affirmation

Simple form	V-ing form
I could unclasp you could unclasp she could unclasp we could unclasp you could unclasp they could unclasp	I could be unclasping you could be unclasping she could be unclasping we could be unclasping you could be unclasping they could be unclasping
Perfect	V-ing perfect
I could have unclasped you could have unclasped she could have unclasped we could have unclasped you could have unclasped they could have unclasped	I could have been unclasping you could have been unclasping she could have been unclasping we could have been unclasping you could have been unclasping they could have been unclasping

Negation

Simple form	V-ing form
I could not unclasp you could not unclasp she could not unclasp we could not unclasp you could not unclasp they could not unclasp	I could not be unclasping you could not be unclasping she could not be unclasping we could not be unclasping you could not be unclasping they could not be unclasping
Perfect	V-ing perfect
I could not have unclasped you could not have unclasped she could not have unclasped we could not have unclasped you could not have unclasped they could not have unclasped	I could not have been unclasping you could not have been unclasping she could not have been unclasping we could not have been unclasping you could not have been unclasping they could not have been unclasping

Interrogative form

Simple form	V-ing form
could I unclasp? could you unclasp? could she unclasp? could we unclasp? could you unclasp? could they unclasp?	could I be unclasping? could you be unclasping? could she be unclasping? could we be unclasping? could you be unclasping? could they be unclasping?
Perfect	V-ing perfect
could I have unclasped? could you have unclasped? could she have unclasped? could we have unclasped? could you have unclasped? could they have unclasped?	could I have been unclasping? could you have been unclasping? could she have been unclasping? could we have been unclasping? could you have been unclasping? could they have been unclasping?

Interro-negative form

Simple form	V-ing form
could I not unclasp? could you not unclasp? could she not unclasp? could we not unclasp? could you not unclasp? could they not unclasp?	could I not be unclasping? could you not be unclasping? could she not be unclasping? could we not be unclasping? could you not be unclasping? could they not be unclasping?
Perfect	V-ing perfect
could I not have unclasped? could you not have unclasped? could she not have unclasped? could we not have unclasped? could you not have unclasped? could they not have unclasped?	could I not have been unclasping? could you not have been unclasping? could she not have been unclasping? could we not have been unclasping? could you not have been unclasping? could they not have been unclasping?