could lug
Regular verb: lug - lugged- lugged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lug
you could lug
she could lug
we could lug
you could lug
they could lug 	I could be lugging
you could be lugging
she could be lugging
we could be lugging
you could be lugging
they could be lugging	I could have lugged
you could have lugged
she could have lugged
we could have lugged
you could have lugged
they could have lugged	I could have been lugging
you could have been lugging
she could have been lugging
we could have been lugging
you could have been lugging
they could have been lugging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lug
you couldn't lug
she couldn't lug
we couldn't lug
you couldn't lug
they couldn't lug 	I couldn't be lugging
you couldn't be lugging
she couldn't be lugging
we couldn't be lugging
you couldn't be lugging
they couldn't be lugging	I couldn't have lugged
you couldn't have lugged
she couldn't have lugged
we couldn't have lugged
you couldn't have lugged
they couldn't have lugged	I couldn't have been lugging
you couldn't have been lugging
she couldn't have been lugging
we couldn't have been lugging
you couldn't have been lugging
they couldn't have been lugging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lug?
could you lug?
could she lug?
could we lug?
could you lug?
could they lug? 	could I be lugging?
could you be lugging?
could she be lugging?
could we be lugging?
could you be lugging?
could they be lugging? 	could I have lugged?
could you have lugged?
could she have lugged?
could we have lugged?
could you have lugged?
could they have lugged? 	could I have been lugging?
could you have been lugging?
could she have been lugging?
could we have been lugging?
could you have been lugging?
could they have been lugging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lug?
couldn't you lug?
couldn't she lug?
couldn't we lug?
couldn't you lug?
couldn't they lug? 	couldn't I be lugging?
couldn't you be lugging?
couldn't she be lugging?
couldn't we be lugging?
couldn't you be lugging?
couldn't they be lugging? 	couldn't I have lugged?
couldn't you have lugged?
couldn't she have lugged?
couldn't we have lugged?
couldn't you have lugged?
couldn't they have lugged? 	couldn't I have been lugging?
couldn't you have been lugging?
couldn't she have been lugging?
couldn't we have been lugging?
couldn't you have been lugging?
couldn't they have been lugging?