English verb conjugation
COULD UNTUCK

Regular verb: untuck - untucked - untucked

Affirmation

Simple form	V-ing form
I could untuck you could untuck he could untuck we could untuck you could untuck they could untuck	I could be untucking you could be untucking he could be untucking we could be untucking you could be untucking they could be untucking
Perfect	V-ing perfect
I could have untucked you could have untucked he could have untucked we could have untucked you could have untucked they could have untucked	I could have been untucking you could have been untucking he could have been untucking we could have been untucking you could have been untucking they could have been untucking

Negation

Simple form	V-ing form
I could not untuck you could not untuck he could not untuck we could not untuck you could not untuck they could not untuck	I could not be untucking you could not be untucking he could not be untucking we could not be untucking you could not be untucking they could not be untucking
Perfect	V-ing perfect
I could not have untucked you could not have untucked he could not have untucked we could not have untucked you could not have untucked they could not have untucked	I could not have been untucking you could not have been untucking he could not have been untucking we could not have been untucking you could not have been untucking they could not have been untucking

Interrogative form

Simple form	V-ing form
could I untuck? could you untuck? could he untuck? could we untuck? could you untuck? could they untuck?	could I be untucking? could you be untucking? could he be untucking? could we be untucking? could you be untucking? could they be untucking?
Perfect	V-ing perfect
could I have untucked? could you have untucked? could he have untucked? could we have untucked? could you have untucked? could they have untucked?	could I have been untucking? could you have been untucking? could he have been untucking? could we have been untucking? could you have been untucking? could they have been untucking?

Interro-negative form

Simple form	V-ing form
could I not untuck? could you not untuck? could he not untuck? could we not untuck? could you not untuck? could they not untuck?	could I not be untucking? could you not be untucking? could he not be untucking? could we not be untucking? could you not be untucking? could they not be untucking?
Perfect	V-ing perfect
could I not have untucked? could you not have untucked? could he not have untucked? could we not have untucked? could you not have untucked? could they not have untucked?	could I not have been untucking? could you not have been untucking? could he not have been untucking? could we not have been untucking? could you not have been untucking? could they not have been untucking?