could federate
Regular verb: federate - federated- federated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could federate
you could federate
he could federate
we could federate
you could federate
they could federate 	I could be federating
you could be federating
he could be federating
we could be federating
you could be federating
they could be federating	I could have federated
you could have federated
he could have federated
we could have federated
you could have federated
they could have federated	I could have been federating
you could have been federating
he could have been federating
we could have been federating
you could have been federating
they could have been federating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't federate
you couldn't federate
he couldn't federate
we couldn't federate
you couldn't federate
they couldn't federate 	I couldn't be federating
you couldn't be federating
he couldn't be federating
we couldn't be federating
you couldn't be federating
they couldn't be federating	I couldn't have federated
you couldn't have federated
he couldn't have federated
we couldn't have federated
you couldn't have federated
they couldn't have federated	I couldn't have been federating
you couldn't have been federating
he couldn't have been federating
we couldn't have been federating
you couldn't have been federating
they couldn't have been federating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I federate?
could you federate?
could he federate?
could we federate?
could you federate?
could they federate? 	could I be federating?
could you be federating?
could he be federating?
could we be federating?
could you be federating?
could they be federating? 	could I have federated?
could you have federated?
could he have federated?
could we have federated?
could you have federated?
could they have federated? 	could I have been federating?
could you have been federating?
could he have been federating?
could we have been federating?
could you have been federating?
could they have been federating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I federate?
couldn't you federate?
couldn't he federate?
couldn't we federate?
couldn't you federate?
couldn't they federate? 	couldn't I be federating?
couldn't you be federating?
couldn't he be federating?
couldn't we be federating?
couldn't you be federating?
couldn't they be federating? 	couldn't I have federated?
couldn't you have federated?
couldn't he have federated?
couldn't we have federated?
couldn't you have federated?
couldn't they have federated? 	couldn't I have been federating?
couldn't you have been federating?
couldn't he have been federating?
couldn't we have been federating?
couldn't you have been federating?
couldn't they have been federating?