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 could not truncheon
you could not truncheon
he could not truncheon
we could not truncheon
you could not truncheon
they could not truncheon 	I could not be truncheoning
you could not be truncheoning
he could not be truncheoning
we could not be truncheoning
you could not be truncheoning
they could not be truncheoning	I could not have truncheoned
you could not have truncheoned
he could not have truncheoned
we could not have truncheoned
you could not have truncheoned
they could not have truncheoned	I could not have been truncheoning
you could not have been truncheoning
he could not have been truncheoning
we could not have been truncheoning
you could not have been truncheoning
they could not 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 	
could I not truncheon?
could you not truncheon?
could he not truncheon?
could we not truncheon?
could you not truncheon?
could they not truncheon? 	could I not be truncheoning?
could you not be truncheoning?
could he not be truncheoning?
could we not be truncheoning?
could you not be truncheoning?
could they not be truncheoning? 	could I not have truncheoned?
could you not have truncheoned?
could he not have truncheoned?
could we not have truncheoned?
could you not have truncheoned?
could they not have truncheoned? 	could I not have been truncheoning?
could you not have been truncheoning?
could he not have been truncheoning?
could we not have been truncheoning?
could you not have been truncheoning?
could they not have been truncheoning?