could creosote
Regular verb: creosote - creosoted- creosoted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could creosote
you could creosote
she could creosote
we could creosote
you could creosote
they could creosote 	I could be creosoting
you could be creosoting
she could be creosoting
we could be creosoting
you could be creosoting
they could be creosoting	I could have creosoted
you could have creosoted
she could have creosoted
we could have creosoted
you could have creosoted
they could have creosoted	I could have been creosoting
you could have been creosoting
she could have been creosoting
we could have been creosoting
you could have been creosoting
they could have been creosoting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't creosote
you couldn't creosote
she couldn't creosote
we couldn't creosote
you couldn't creosote
they couldn't creosote 	I couldn't be creosoting
you couldn't be creosoting
she couldn't be creosoting
we couldn't be creosoting
you couldn't be creosoting
they couldn't be creosoting	I couldn't have creosoted
you couldn't have creosoted
she couldn't have creosoted
we couldn't have creosoted
you couldn't have creosoted
they couldn't have creosoted	I couldn't have been creosoting
you couldn't have been creosoting
she couldn't have been creosoting
we couldn't have been creosoting
you couldn't have been creosoting
they couldn't have been creosoting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I creosote?
could you creosote?
could she creosote?
could we creosote?
could you creosote?
could they creosote? 	could I be creosoting?
could you be creosoting?
could she be creosoting?
could we be creosoting?
could you be creosoting?
could they be creosoting? 	could I have creosoted?
could you have creosoted?
could she have creosoted?
could we have creosoted?
could you have creosoted?
could they have creosoted? 	could I have been creosoting?
could you have been creosoting?
could she have been creosoting?
could we have been creosoting?
could you have been creosoting?
could they have been creosoting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I creosote?
couldn't you creosote?
couldn't she creosote?
couldn't we creosote?
couldn't you creosote?
couldn't they creosote? 	couldn't I be creosoting?
couldn't you be creosoting?
couldn't she be creosoting?
couldn't we be creosoting?
couldn't you be creosoting?
couldn't they be creosoting? 	couldn't I have creosoted?
couldn't you have creosoted?
couldn't she have creosoted?
couldn't we have creosoted?
couldn't you have creosoted?
couldn't they have creosoted? 	couldn't I have been creosoting?
couldn't you have been creosoting?
couldn't she have been creosoting?
couldn't we have been creosoting?
couldn't you have been creosoting?
couldn't they have been creosoting?