could prepack
Regular verb: prepack - prepacked- prepacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prepack
you could prepack
she could prepack
we could prepack
you could prepack
they could prepack 	I could be prepacking
you could be prepacking
she could be prepacking
we could be prepacking
you could be prepacking
they could be prepacking	I could have prepacked
you could have prepacked
she could have prepacked
we could have prepacked
you could have prepacked
they could have prepacked	I could have been prepacking
you could have been prepacking
she could have been prepacking
we could have been prepacking
you could have been prepacking
they could have been prepacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prepack
you couldn't prepack
she couldn't prepack
we couldn't prepack
you couldn't prepack
they couldn't prepack 	I couldn't be prepacking
you couldn't be prepacking
she couldn't be prepacking
we couldn't be prepacking
you couldn't be prepacking
they couldn't be prepacking	I couldn't have prepacked
you couldn't have prepacked
she couldn't have prepacked
we couldn't have prepacked
you couldn't have prepacked
they couldn't have prepacked	I couldn't have been prepacking
you couldn't have been prepacking
she couldn't have been prepacking
we couldn't have been prepacking
you couldn't have been prepacking
they couldn't have been prepacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prepack?
could you prepack?
could she prepack?
could we prepack?
could you prepack?
could they prepack? 	could I be prepacking?
could you be prepacking?
could she be prepacking?
could we be prepacking?
could you be prepacking?
could they be prepacking? 	could I have prepacked?
could you have prepacked?
could she have prepacked?
could we have prepacked?
could you have prepacked?
could they have prepacked? 	could I have been prepacking?
could you have been prepacking?
could she have been prepacking?
could we have been prepacking?
could you have been prepacking?
could they have been prepacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I prepack?
couldn't you prepack?
couldn't she prepack?
couldn't we prepack?
couldn't you prepack?
couldn't they prepack? 	couldn't I be prepacking?
couldn't you be prepacking?
couldn't she be prepacking?
couldn't we be prepacking?
couldn't you be prepacking?
couldn't they be prepacking? 	couldn't I have prepacked?
couldn't you have prepacked?
couldn't she have prepacked?
couldn't we have prepacked?
couldn't you have prepacked?
couldn't they have prepacked? 	couldn't I have been prepacking?
couldn't you have been prepacking?
couldn't she have been prepacking?
couldn't we have been prepacking?
couldn't you have been prepacking?
couldn't they have been prepacking?