could lasso
Regular verb: lasso - lassoed- lassoed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lasso
you could lasso
she could lasso
we could lasso
you could lasso
they could lasso 	I could be lassoing
you could be lassoing
she could be lassoing
we could be lassoing
you could be lassoing
they could be lassoing	I could have lassoed
you could have lassoed
she could have lassoed
we could have lassoed
you could have lassoed
they could have lassoed	I could have been lassoing
you could have been lassoing
she could have been lassoing
we could have been lassoing
you could have been lassoing
they could have been lassoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lasso
you couldn't lasso
she couldn't lasso
we couldn't lasso
you couldn't lasso
they couldn't lasso 	I couldn't be lassoing
you couldn't be lassoing
she couldn't be lassoing
we couldn't be lassoing
you couldn't be lassoing
they couldn't be lassoing	I couldn't have lassoed
you couldn't have lassoed
she couldn't have lassoed
we couldn't have lassoed
you couldn't have lassoed
they couldn't have lassoed	I couldn't have been lassoing
you couldn't have been lassoing
she couldn't have been lassoing
we couldn't have been lassoing
you couldn't have been lassoing
they couldn't have been lassoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lasso?
could you lasso?
could she lasso?
could we lasso?
could you lasso?
could they lasso? 	could I be lassoing?
could you be lassoing?
could she be lassoing?
could we be lassoing?
could you be lassoing?
could they be lassoing? 	could I have lassoed?
could you have lassoed?
could she have lassoed?
could we have lassoed?
could you have lassoed?
could they have lassoed? 	could I have been lassoing?
could you have been lassoing?
could she have been lassoing?
could we have been lassoing?
could you have been lassoing?
could they have been lassoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lasso?
couldn't you lasso?
couldn't she lasso?
couldn't we lasso?
couldn't you lasso?
couldn't they lasso? 	couldn't I be lassoing?
couldn't you be lassoing?
couldn't she be lassoing?
couldn't we be lassoing?
couldn't you be lassoing?
couldn't they be lassoing? 	couldn't I have lassoed?
couldn't you have lassoed?
couldn't she have lassoed?
couldn't we have lassoed?
couldn't you have lassoed?
couldn't they have lassoed? 	couldn't I have been lassoing?
couldn't you have been lassoing?
couldn't she have been lassoing?
couldn't we have been lassoing?
couldn't you have been lassoing?
couldn't they have been lassoing?