English verb conjugation
COULD UNPACK

Regular verb: unpack - unpacked - unpacked

Affirmation

Simple form	V-ing form
I could unpack you could unpack he could unpack we could unpack you could unpack they could unpack	I could be unpacking you could be unpacking he could be unpacking we could be unpacking you could be unpacking they could be unpacking
Perfect	V-ing perfect
I could have unpacked you could have unpacked he could have unpacked we could have unpacked you could have unpacked they could have unpacked	I could have been unpacking you could have been unpacking he could have been unpacking we could have been unpacking you could have been unpacking they could have been unpacking

Negation

Simple form	V-ing form
I could not unpack you could not unpack he could not unpack we could not unpack you could not unpack they could not unpack	I could not be unpacking you could not be unpacking he could not be unpacking we could not be unpacking you could not be unpacking they could not be unpacking
Perfect	V-ing perfect
I could not have unpacked you could not have unpacked he could not have unpacked we could not have unpacked you could not have unpacked they could not have unpacked	I could not have been unpacking you could not have been unpacking he could not have been unpacking we could not have been unpacking you could not have been unpacking they could not have been unpacking

Interrogative form

Simple form	V-ing form
could I unpack? could you unpack? could he unpack? could we unpack? could you unpack? could they unpack?	could I be unpacking? could you be unpacking? could he be unpacking? could we be unpacking? could you be unpacking? could they be unpacking?
Perfect	V-ing perfect
could I have unpacked? could you have unpacked? could he have unpacked? could we have unpacked? could you have unpacked? could they have unpacked?	could I have been unpacking? could you have been unpacking? could he have been unpacking? could we have been unpacking? could you have been unpacking? could they have been unpacking?

Interro-negative form

Simple form	V-ing form
could I not unpack? could you not unpack? could he not unpack? could we not unpack? could you not unpack? could they not unpack?	could I not be unpacking? could you not be unpacking? could he not be unpacking? could we not be unpacking? could you not be unpacking? could they not be unpacking?
Perfect	V-ing perfect
could I not have unpacked? could you not have unpacked? could he not have unpacked? could we not have unpacked? could you not have unpacked? could they not have unpacked?	could I not have been unpacking? could you not have been unpacking? could he not have been unpacking? could we not have been unpacking? could you not have been unpacking? could they not have been unpacking?