could crane
Regular verb: crane - craned- craned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could crane
you could crane
he could crane
we could crane
you could crane
they could crane 	I could be craning
you could be craning
he could be craning
we could be craning
you could be craning
they could be craning	I could have craned
you could have craned
he could have craned
we could have craned
you could have craned
they could have craned	I could have been craning
you could have been craning
he could have been craning
we could have been craning
you could have been craning
they could have been craning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't crane
you couldn't crane
he couldn't crane
we couldn't crane
you couldn't crane
they couldn't crane 	I couldn't be craning
you couldn't be craning
he couldn't be craning
we couldn't be craning
you couldn't be craning
they couldn't be craning	I couldn't have craned
you couldn't have craned
he couldn't have craned
we couldn't have craned
you couldn't have craned
they couldn't have craned	I couldn't have been craning
you couldn't have been craning
he couldn't have been craning
we couldn't have been craning
you couldn't have been craning
they couldn't have been craning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I crane?
could you crane?
could he crane?
could we crane?
could you crane?
could they crane? 	could I be craning?
could you be craning?
could he be craning?
could we be craning?
could you be craning?
could they be craning? 	could I have craned?
could you have craned?
could he have craned?
could we have craned?
could you have craned?
could they have craned? 	could I have been craning?
could you have been craning?
could he have been craning?
could we have been craning?
could you have been craning?
could they have been craning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I crane?
couldn't you crane?
couldn't he crane?
couldn't we crane?
couldn't you crane?
couldn't they crane? 	couldn't I be craning?
couldn't you be craning?
couldn't he be craning?
couldn't we be craning?
couldn't you be craning?
couldn't they be craning? 	couldn't I have craned?
couldn't you have craned?
couldn't he have craned?
couldn't we have craned?
couldn't you have craned?
couldn't they have craned? 	couldn't I have been craning?
couldn't you have been craning?
couldn't he have been craning?
couldn't we have been craning?
couldn't you have been craning?
couldn't they have been craning?