could truncheon
Regular verb: truncheon - truncheoned- truncheoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could truncheon
you could truncheon
he could truncheon
we could truncheon
you could truncheon
they could truncheon 	I could be truncheoning
you could be truncheoning
he could be truncheoning
we could be truncheoning
you could be truncheoning
they could be truncheoning	I could have truncheoned
you could have truncheoned
he could have truncheoned
we could have truncheoned
you could have truncheoned
they could have truncheoned	I could have been truncheoning
you could have been truncheoning
he could have been truncheoning
we could have been truncheoning
you could have been truncheoning
they could have been truncheoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't truncheon
you couldn't truncheon
he couldn't truncheon
we couldn't truncheon
you couldn't truncheon
they couldn't truncheon 	I couldn't be truncheoning
you couldn't be truncheoning
he couldn't be truncheoning
we couldn't be truncheoning
you couldn't be truncheoning
they couldn't be truncheoning	I couldn't have truncheoned
you couldn't have truncheoned
he couldn't have truncheoned
we couldn't have truncheoned
you couldn't have truncheoned
they couldn't have truncheoned	I couldn't have been truncheoning
you couldn't have been truncheoning
he couldn't have been truncheoning
we couldn't have been truncheoning
you couldn't have been truncheoning
they couldn't have been truncheoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I truncheon?
could you truncheon?
could he truncheon?
could we truncheon?
could you truncheon?
could they truncheon? 	could I be truncheoning?
could you be truncheoning?
could he be truncheoning?
could we be truncheoning?
could you be truncheoning?
could they be truncheoning? 	could I have truncheoned?
could you have truncheoned?
could he have truncheoned?
could we have truncheoned?
could you have truncheoned?
could they have truncheoned? 	could I have been truncheoning?
could you have been truncheoning?
could he have been truncheoning?
could we have been truncheoning?
could you have been truncheoning?
could they have been truncheoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I truncheon?
couldn't you truncheon?
couldn't he truncheon?
couldn't we truncheon?
couldn't you truncheon?
couldn't they truncheon? 	couldn't I be truncheoning?
couldn't you be truncheoning?
couldn't he be truncheoning?
couldn't we be truncheoning?
couldn't you be truncheoning?
couldn't they be truncheoning? 	couldn't I have truncheoned?
couldn't you have truncheoned?
couldn't he have truncheoned?
couldn't we have truncheoned?
couldn't you have truncheoned?
couldn't they have truncheoned? 	couldn't I have been truncheoning?
couldn't you have been truncheoning?
couldn't he have been truncheoning?
couldn't we have been truncheoning?
couldn't you have been truncheoning?
couldn't they have been truncheoning?