can unpack
Regular verb: unpack - unpacked- unpacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can unpack
you can unpack
she can unpack
we can unpack
you can unpack
they can unpack 	I can be unpacking
you can be unpacking
she can be unpacking
we can be unpacking
you can be unpacking
they can be unpacking	I can have unpacked
you can have unpacked
she can have unpacked
we can have unpacked
you can have unpacked
they can have unpacked	I can have been unpacking
you can have been unpacking
she can have been unpacking
we can have been unpacking
you can have been unpacking
they can have been unpacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot unpack
you cannot unpack
she cannot unpack
we cannot unpack
you cannot unpack
they cannot unpack 	I cannot be unpacking
you cannot be unpacking
she cannot be unpacking
we cannot be unpacking
you cannot be unpacking
they cannot be unpacking	I cannot have unpacked
you cannot have unpacked
she cannot have unpacked
we cannot have unpacked
you cannot have unpacked
they cannot have unpacked	I cannot have been unpacking
you cannot have been unpacking
she cannot have been unpacking
we cannot have been unpacking
you cannot have been unpacking
they cannot have been unpacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I unpack?
can you unpack?
can she unpack?
can we unpack?
can you unpack?
can they unpack? 	can I be unpacking?
can you be unpacking?
can she be unpacking?
can we be unpacking?
can you be unpacking?
can they be unpacking? 	can I have unpacked?
can you have unpacked?
can she have unpacked?
can we have unpacked?
can you have unpacked?
can they have unpacked? 	can I have been unpacking?
can you have been unpacking?
can she have been unpacking?
can we have been unpacking?
can you have been unpacking?
can they have been unpacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not unpack?
can you not unpack?
can she not unpack?
can we not unpack?
can you not unpack?
can they not unpack? 	can I not be unpacking?
can you not be unpacking?
can she not be unpacking?
can we not be unpacking?
can you not be unpacking?
can they not be unpacking? 	can I not have unpacked?
can you not have unpacked?
can she not have unpacked?
can we not have unpacked?
can you not have unpacked?
can they not have unpacked? 	can I not have been unpacking?
can you not have been unpacking?
can she not have been unpacking?
can we not have been unpacking?
can you not have been unpacking?
can they not have been unpacking?