English verb conjugation
COULD UNTUCK

Regular verb: untuck - untucked - untucked

Affirmation

Simple form	V-ing form
I could untuck you could untuck she could untuck we could untuck you could untuck they could untuck	I could be untucking you could be untucking she 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 she 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 she 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 couldn't untuck you couldn't untuck she couldn't untuck we couldn't untuck you couldn't untuck they couldn't untuck	I couldn't be untucking you couldn't be untucking she couldn't be untucking we couldn't be untucking you couldn't be untucking they couldn't be untucking
Perfect	V-ing perfect
I couldn't have untucked you couldn't have untucked she couldn't have untucked we couldn't have untucked you couldn't have untucked they couldn't have untucked	I couldn't have been untucking you couldn't have been untucking she couldn't have been untucking we couldn't have been untucking you couldn't have been untucking they couldn't have been untucking

Interrogative form

Simple form	V-ing form
could I untuck? could you untuck? could she untuck? could we untuck? could you untuck? could they untuck?	could I be untucking? could you be untucking? could she 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 she 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 she 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
couldn't I untuck? couldn't you untuck? couldn't she untuck? couldn't we untuck? couldn't you untuck? couldn't they untuck?	couldn't I be untucking? couldn't you be untucking? couldn't she be untucking? couldn't we be untucking? couldn't you be untucking? couldn't they be untucking?
Perfect	V-ing perfect
couldn't I have untucked? couldn't you have untucked? couldn't she have untucked? couldn't we have untucked? couldn't you have untucked? couldn't they have untucked?	couldn't I have been untucking? couldn't you have been untucking? couldn't she have been untucking? couldn't we have been untucking? couldn't you have been untucking? couldn't they have been untucking?