could graffiti
Regular verb: graffiti - graffitied- graffitied

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could graffiti
you could graffiti
he could graffiti
we could graffiti
you could graffiti
they could graffiti 	I could be graffitiing
you could be graffitiing
he could be graffitiing
we could be graffitiing
you could be graffitiing
they could be graffitiing	I could have graffitied
you could have graffitied
he could have graffitied
we could have graffitied
you could have graffitied
they could have graffitied	I could have been graffitiing
you could have been graffitiing
he could have been graffitiing
we could have been graffitiing
you could have been graffitiing
they could have been graffitiing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't graffiti
you couldn't graffiti
he couldn't graffiti
we couldn't graffiti
you couldn't graffiti
they couldn't graffiti 	I couldn't be graffitiing
you couldn't be graffitiing
he couldn't be graffitiing
we couldn't be graffitiing
you couldn't be graffitiing
they couldn't be graffitiing	I couldn't have graffitied
you couldn't have graffitied
he couldn't have graffitied
we couldn't have graffitied
you couldn't have graffitied
they couldn't have graffitied	I couldn't have been graffitiing
you couldn't have been graffitiing
he couldn't have been graffitiing
we couldn't have been graffitiing
you couldn't have been graffitiing
they couldn't have been graffitiing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I graffiti?
could you graffiti?
could he graffiti?
could we graffiti?
could you graffiti?
could they graffiti? 	could I be graffitiing?
could you be graffitiing?
could he be graffitiing?
could we be graffitiing?
could you be graffitiing?
could they be graffitiing? 	could I have graffitied?
could you have graffitied?
could he have graffitied?
could we have graffitied?
could you have graffitied?
could they have graffitied? 	could I have been graffitiing?
could you have been graffitiing?
could he have been graffitiing?
could we have been graffitiing?
could you have been graffitiing?
could they have been graffitiing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I graffiti?
couldn't you graffiti?
couldn't he graffiti?
couldn't we graffiti?
couldn't you graffiti?
couldn't they graffiti? 	couldn't I be graffitiing?
couldn't you be graffitiing?
couldn't he be graffitiing?
couldn't we be graffitiing?
couldn't you be graffitiing?
couldn't they be graffitiing? 	couldn't I have graffitied?
couldn't you have graffitied?
couldn't he have graffitied?
couldn't we have graffitied?
couldn't you have graffitied?
couldn't they have graffitied? 	couldn't I have been graffitiing?
couldn't you have been graffitiing?
couldn't he have been graffitiing?
couldn't we have been graffitiing?
couldn't you have been graffitiing?
couldn't they have been graffitiing?