could extravagate
Regular verb: extravagate - extravagated- extravagated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could extravagate
you could extravagate
he could extravagate
we could extravagate
you could extravagate
they could extravagate 	I could be extravagating
you could be extravagating
he could be extravagating
we could be extravagating
you could be extravagating
they could be extravagating	I could have extravagated
you could have extravagated
he could have extravagated
we could have extravagated
you could have extravagated
they could have extravagated	I could have been extravagating
you could have been extravagating
he could have been extravagating
we could have been extravagating
you could have been extravagating
they could have been extravagating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't extravagate
you couldn't extravagate
he couldn't extravagate
we couldn't extravagate
you couldn't extravagate
they couldn't extravagate 	I couldn't be extravagating
you couldn't be extravagating
he couldn't be extravagating
we couldn't be extravagating
you couldn't be extravagating
they couldn't be extravagating	I couldn't have extravagated
you couldn't have extravagated
he couldn't have extravagated
we couldn't have extravagated
you couldn't have extravagated
they couldn't have extravagated	I couldn't have been extravagating
you couldn't have been extravagating
he couldn't have been extravagating
we couldn't have been extravagating
you couldn't have been extravagating
they couldn't have been extravagating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I extravagate?
could you extravagate?
could he extravagate?
could we extravagate?
could you extravagate?
could they extravagate? 	could I be extravagating?
could you be extravagating?
could he be extravagating?
could we be extravagating?
could you be extravagating?
could they be extravagating? 	could I have extravagated?
could you have extravagated?
could he have extravagated?
could we have extravagated?
could you have extravagated?
could they have extravagated? 	could I have been extravagating?
could you have been extravagating?
could he have been extravagating?
could we have been extravagating?
could you have been extravagating?
could they have been extravagating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I extravagate?
couldn't you extravagate?
couldn't he extravagate?
couldn't we extravagate?
couldn't you extravagate?
couldn't they extravagate? 	couldn't I be extravagating?
couldn't you be extravagating?
couldn't he be extravagating?
couldn't we be extravagating?
couldn't you be extravagating?
couldn't they be extravagating? 	couldn't I have extravagated?
couldn't you have extravagated?
couldn't he have extravagated?
couldn't we have extravagated?
couldn't you have extravagated?
couldn't they have extravagated? 	couldn't I have been extravagating?
couldn't you have been extravagating?
couldn't he have been extravagating?
couldn't we have been extravagating?
couldn't you have been extravagating?
couldn't they have been extravagating?