could lull
Regular verb: lull - lulled- lulled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lull
you could lull
she could lull
we could lull
you could lull
they could lull 	I could be lulling
you could be lulling
she could be lulling
we could be lulling
you could be lulling
they could be lulling	I could have lulled
you could have lulled
she could have lulled
we could have lulled
you could have lulled
they could have lulled	I could have been lulling
you could have been lulling
she could have been lulling
we could have been lulling
you could have been lulling
they could have been lulling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lull
you couldn't lull
she couldn't lull
we couldn't lull
you couldn't lull
they couldn't lull 	I couldn't be lulling
you couldn't be lulling
she couldn't be lulling
we couldn't be lulling
you couldn't be lulling
they couldn't be lulling	I couldn't have lulled
you couldn't have lulled
she couldn't have lulled
we couldn't have lulled
you couldn't have lulled
they couldn't have lulled	I couldn't have been lulling
you couldn't have been lulling
she couldn't have been lulling
we couldn't have been lulling
you couldn't have been lulling
they couldn't have been lulling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lull?
could you lull?
could she lull?
could we lull?
could you lull?
could they lull? 	could I be lulling?
could you be lulling?
could she be lulling?
could we be lulling?
could you be lulling?
could they be lulling? 	could I have lulled?
could you have lulled?
could she have lulled?
could we have lulled?
could you have lulled?
could they have lulled? 	could I have been lulling?
could you have been lulling?
could she have been lulling?
could we have been lulling?
could you have been lulling?
could they have been lulling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lull?
couldn't you lull?
couldn't she lull?
couldn't we lull?
couldn't you lull?
couldn't they lull? 	couldn't I be lulling?
couldn't you be lulling?
couldn't she be lulling?
couldn't we be lulling?
couldn't you be lulling?
couldn't they be lulling? 	couldn't I have lulled?
couldn't you have lulled?
couldn't she have lulled?
couldn't we have lulled?
couldn't you have lulled?
couldn't they have lulled? 	couldn't I have been lulling?
couldn't you have been lulling?
couldn't she have been lulling?
couldn't we have been lulling?
couldn't you have been lulling?
couldn't they have been lulling?