could radiotelegraph
Regular verb: radiotelegraph - radiotelegraphed- radiotelegraphed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could radiotelegraph
you could radiotelegraph
he could radiotelegraph
we could radiotelegraph
you could radiotelegraph
they could radiotelegraph 	I could be radiotelegraphing
you could be radiotelegraphing
he could be radiotelegraphing
we could be radiotelegraphing
you could be radiotelegraphing
they could be radiotelegraphing	I could have radiotelegraphed
you could have radiotelegraphed
he could have radiotelegraphed
we could have radiotelegraphed
you could have radiotelegraphed
they could have radiotelegraphed	I could have been radiotelegraphing
you could have been radiotelegraphing
he could have been radiotelegraphing
we could have been radiotelegraphing
you could have been radiotelegraphing
they could have been radiotelegraphing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not radiotelegraph
you could not radiotelegraph
he could not radiotelegraph
we could not radiotelegraph
you could not radiotelegraph
they could not radiotelegraph 	I could not be radiotelegraphing
you could not be radiotelegraphing
he could not be radiotelegraphing
we could not be radiotelegraphing
you could not be radiotelegraphing
they could not be radiotelegraphing	I could not have radiotelegraphed
you could not have radiotelegraphed
he could not have radiotelegraphed
we could not have radiotelegraphed
you could not have radiotelegraphed
they could not have radiotelegraphed	I could not have been radiotelegraphing
you could not have been radiotelegraphing
he could not have been radiotelegraphing
we could not have been radiotelegraphing
you could not have been radiotelegraphing
they could not have been radiotelegraphing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I radiotelegraph?
could you radiotelegraph?
could he radiotelegraph?
could we radiotelegraph?
could you radiotelegraph?
could they radiotelegraph? 	could I be radiotelegraphing?
could you be radiotelegraphing?
could he be radiotelegraphing?
could we be radiotelegraphing?
could you be radiotelegraphing?
could they be radiotelegraphing? 	could I have radiotelegraphed?
could you have radiotelegraphed?
could he have radiotelegraphed?
could we have radiotelegraphed?
could you have radiotelegraphed?
could they have radiotelegraphed? 	could I have been radiotelegraphing?
could you have been radiotelegraphing?
could he have been radiotelegraphing?
could we have been radiotelegraphing?
could you have been radiotelegraphing?
could they have been radiotelegraphing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not radiotelegraph?
could you not radiotelegraph?
could he not radiotelegraph?
could we not radiotelegraph?
could you not radiotelegraph?
could they not radiotelegraph? 	could I not be radiotelegraphing?
could you not be radiotelegraphing?
could he not be radiotelegraphing?
could we not be radiotelegraphing?
could you not be radiotelegraphing?
could they not be radiotelegraphing? 	could I not have radiotelegraphed?
could you not have radiotelegraphed?
could he not have radiotelegraphed?
could we not have radiotelegraphed?
could you not have radiotelegraphed?
could they not have radiotelegraphed? 	could I not have been radiotelegraphing?
could you not have been radiotelegraphing?
could he not have been radiotelegraphing?
could we not have been radiotelegraphing?
could you not have been radiotelegraphing?
could they not have been radiotelegraphing?