could tattoo
Regular verb: tattoo - tattooed- tattooed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tattoo
you could tattoo
he could tattoo
we could tattoo
you could tattoo
they could tattoo 	I could be tattooing
you could be tattooing
he could be tattooing
we could be tattooing
you could be tattooing
they could be tattooing	I could have tattooed
you could have tattooed
he could have tattooed
we could have tattooed
you could have tattooed
they could have tattooed	I could have been tattooing
you could have been tattooing
he could have been tattooing
we could have been tattooing
you could have been tattooing
they could have been tattooing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't tattoo
you couldn't tattoo
he couldn't tattoo
we couldn't tattoo
you couldn't tattoo
they couldn't tattoo 	I couldn't be tattooing
you couldn't be tattooing
he couldn't be tattooing
we couldn't be tattooing
you couldn't be tattooing
they couldn't be tattooing	I couldn't have tattooed
you couldn't have tattooed
he couldn't have tattooed
we couldn't have tattooed
you couldn't have tattooed
they couldn't have tattooed	I couldn't have been tattooing
you couldn't have been tattooing
he couldn't have been tattooing
we couldn't have been tattooing
you couldn't have been tattooing
they couldn't have been tattooing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tattoo?
could you tattoo?
could he tattoo?
could we tattoo?
could you tattoo?
could they tattoo? 	could I be tattooing?
could you be tattooing?
could he be tattooing?
could we be tattooing?
could you be tattooing?
could they be tattooing? 	could I have tattooed?
could you have tattooed?
could he have tattooed?
could we have tattooed?
could you have tattooed?
could they have tattooed? 	could I have been tattooing?
could you have been tattooing?
could he have been tattooing?
could we have been tattooing?
could you have been tattooing?
could they have been tattooing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I tattoo?
couldn't you tattoo?
couldn't he tattoo?
couldn't we tattoo?
couldn't you tattoo?
couldn't they tattoo? 	couldn't I be tattooing?
couldn't you be tattooing?
couldn't he be tattooing?
couldn't we be tattooing?
couldn't you be tattooing?
couldn't they be tattooing? 	couldn't I have tattooed?
couldn't you have tattooed?
couldn't he have tattooed?
couldn't we have tattooed?
couldn't you have tattooed?
couldn't they have tattooed? 	couldn't I have been tattooing?
couldn't you have been tattooing?
couldn't he have been tattooing?
couldn't we have been tattooing?
couldn't you have been tattooing?
couldn't they have been tattooing?