could phonate
Regular verb: phonate - phonated- phonated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could phonate
you could phonate
he could phonate
we could phonate
you could phonate
they could phonate 	I could be phonating
you could be phonating
he could be phonating
we could be phonating
you could be phonating
they could be phonating	I could have phonated
you could have phonated
he could have phonated
we could have phonated
you could have phonated
they could have phonated	I could have been phonating
you could have been phonating
he could have been phonating
we could have been phonating
you could have been phonating
they could have been phonating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't phonate
you couldn't phonate
he couldn't phonate
we couldn't phonate
you couldn't phonate
they couldn't phonate 	I couldn't be phonating
you couldn't be phonating
he couldn't be phonating
we couldn't be phonating
you couldn't be phonating
they couldn't be phonating	I couldn't have phonated
you couldn't have phonated
he couldn't have phonated
we couldn't have phonated
you couldn't have phonated
they couldn't have phonated	I couldn't have been phonating
you couldn't have been phonating
he couldn't have been phonating
we couldn't have been phonating
you couldn't have been phonating
they couldn't have been phonating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I phonate?
could you phonate?
could he phonate?
could we phonate?
could you phonate?
could they phonate? 	could I be phonating?
could you be phonating?
could he be phonating?
could we be phonating?
could you be phonating?
could they be phonating? 	could I have phonated?
could you have phonated?
could he have phonated?
could we have phonated?
could you have phonated?
could they have phonated? 	could I have been phonating?
could you have been phonating?
could he have been phonating?
could we have been phonating?
could you have been phonating?
could they have been phonating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I phonate?
couldn't you phonate?
couldn't he phonate?
couldn't we phonate?
couldn't you phonate?
couldn't they phonate? 	couldn't I be phonating?
couldn't you be phonating?
couldn't he be phonating?
couldn't we be phonating?
couldn't you be phonating?
couldn't they be phonating? 	couldn't I have phonated?
couldn't you have phonated?
couldn't he have phonated?
couldn't we have phonated?
couldn't you have phonated?
couldn't they have phonated? 	couldn't I have been phonating?
couldn't you have been phonating?
couldn't he have been phonating?
couldn't we have been phonating?
couldn't you have been phonating?
couldn't they have been phonating?