could gibbet
Regular verb: gibbet - gibbeted- gibbeted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could gibbet
you could gibbet
he could gibbet
we could gibbet
you could gibbet
they could gibbet 	I could be gibbeting
you could be gibbeting
he could be gibbeting
we could be gibbeting
you could be gibbeting
they could be gibbeting	I could have gibbeted
you could have gibbeted
he could have gibbeted
we could have gibbeted
you could have gibbeted
they could have gibbeted	I could have been gibbeting
you could have been gibbeting
he could have been gibbeting
we could have been gibbeting
you could have been gibbeting
they could have been gibbeting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't gibbet
you couldn't gibbet
he couldn't gibbet
we couldn't gibbet
you couldn't gibbet
they couldn't gibbet 	I couldn't be gibbeting
you couldn't be gibbeting
he couldn't be gibbeting
we couldn't be gibbeting
you couldn't be gibbeting
they couldn't be gibbeting	I couldn't have gibbeted
you couldn't have gibbeted
he couldn't have gibbeted
we couldn't have gibbeted
you couldn't have gibbeted
they couldn't have gibbeted	I couldn't have been gibbeting
you couldn't have been gibbeting
he couldn't have been gibbeting
we couldn't have been gibbeting
you couldn't have been gibbeting
they couldn't have been gibbeting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I gibbet?
could you gibbet?
could he gibbet?
could we gibbet?
could you gibbet?
could they gibbet? 	could I be gibbeting?
could you be gibbeting?
could he be gibbeting?
could we be gibbeting?
could you be gibbeting?
could they be gibbeting? 	could I have gibbeted?
could you have gibbeted?
could he have gibbeted?
could we have gibbeted?
could you have gibbeted?
could they have gibbeted? 	could I have been gibbeting?
could you have been gibbeting?
could he have been gibbeting?
could we have been gibbeting?
could you have been gibbeting?
could they have been gibbeting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I gibbet?
couldn't you gibbet?
couldn't he gibbet?
couldn't we gibbet?
couldn't you gibbet?
couldn't they gibbet? 	couldn't I be gibbeting?
couldn't you be gibbeting?
couldn't he be gibbeting?
couldn't we be gibbeting?
couldn't you be gibbeting?
couldn't they be gibbeting? 	couldn't I have gibbeted?
couldn't you have gibbeted?
couldn't he have gibbeted?
couldn't we have gibbeted?
couldn't you have gibbeted?
couldn't they have gibbeted? 	couldn't I have been gibbeting?
couldn't you have been gibbeting?
couldn't he have been gibbeting?
couldn't we have been gibbeting?
couldn't you have been gibbeting?
couldn't they have been gibbeting?