could dialogue
Regular verb: dialogue - dialogued- dialogued

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

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could dialogue
you could dialogue
he could dialogue
we could dialogue
you could dialogue
they could dialogue 	I could be dialoguing
you could be dialoguing
he could be dialoguing
we could be dialoguing
you could be dialoguing
they could be dialoguing	I could have dialogued
you could have dialogued
he could have dialogued
we could have dialogued
you could have dialogued
they could have dialogued	I could have been dialoguing
you could have been dialoguing
he could have been dialoguing
we could have been dialoguing
you could have been dialoguing
they could have been dialoguing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't dialogue
you couldn't dialogue
he couldn't dialogue
we couldn't dialogue
you couldn't dialogue
they couldn't dialogue 	I couldn't be dialoguing
you couldn't be dialoguing
he couldn't be dialoguing
we couldn't be dialoguing
you couldn't be dialoguing
they couldn't be dialoguing	I couldn't have dialogued
you couldn't have dialogued
he couldn't have dialogued
we couldn't have dialogued
you couldn't have dialogued
they couldn't have dialogued	I couldn't have been dialoguing
you couldn't have been dialoguing
he couldn't have been dialoguing
we couldn't have been dialoguing
you couldn't have been dialoguing
they couldn't have been dialoguing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I dialogue?
could you dialogue?
could he dialogue?
could we dialogue?
could you dialogue?
could they dialogue? 	could I be dialoguing?
could you be dialoguing?
could he be dialoguing?
could we be dialoguing?
could you be dialoguing?
could they be dialoguing? 	could I have dialogued?
could you have dialogued?
could he have dialogued?
could we have dialogued?
could you have dialogued?
could they have dialogued? 	could I have been dialoguing?
could you have been dialoguing?
could he have been dialoguing?
could we have been dialoguing?
could you have been dialoguing?
could they have been dialoguing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I dialogue?
couldn't you dialogue?
couldn't he dialogue?
couldn't we dialogue?
couldn't you dialogue?
couldn't they dialogue? 	couldn't I be dialoguing?
couldn't you be dialoguing?
couldn't he be dialoguing?
couldn't we be dialoguing?
couldn't you be dialoguing?
couldn't they be dialoguing? 	couldn't I have dialogued?
couldn't you have dialogued?
couldn't he have dialogued?
couldn't we have dialogued?
couldn't you have dialogued?
couldn't they have dialogued? 	couldn't I have been dialoguing?
couldn't you have been dialoguing?
couldn't he have been dialoguing?
couldn't we have been dialoguing?
couldn't you have been dialoguing?
couldn't they have been dialoguing?