could lathe
Regular verb: lathe - lathed- lathed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lathe
you could lathe
he could lathe
we could lathe
you could lathe
they could lathe 	I could be lathing
you could be lathing
he could be lathing
we could be lathing
you could be lathing
they could be lathing	I could have lathed
you could have lathed
he could have lathed
we could have lathed
you could have lathed
they could have lathed	I could have been lathing
you could have been lathing
he could have been lathing
we could have been lathing
you could have been lathing
they could have been lathing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lathe
you couldn't lathe
he couldn't lathe
we couldn't lathe
you couldn't lathe
they couldn't lathe 	I couldn't be lathing
you couldn't be lathing
he couldn't be lathing
we couldn't be lathing
you couldn't be lathing
they couldn't be lathing	I couldn't have lathed
you couldn't have lathed
he couldn't have lathed
we couldn't have lathed
you couldn't have lathed
they couldn't have lathed	I couldn't have been lathing
you couldn't have been lathing
he couldn't have been lathing
we couldn't have been lathing
you couldn't have been lathing
they couldn't have been lathing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lathe?
could you lathe?
could he lathe?
could we lathe?
could you lathe?
could they lathe? 	could I be lathing?
could you be lathing?
could he be lathing?
could we be lathing?
could you be lathing?
could they be lathing? 	could I have lathed?
could you have lathed?
could he have lathed?
could we have lathed?
could you have lathed?
could they have lathed? 	could I have been lathing?
could you have been lathing?
could he have been lathing?
could we have been lathing?
could you have been lathing?
could they have been lathing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lathe?
couldn't you lathe?
couldn't he lathe?
couldn't we lathe?
couldn't you lathe?
couldn't they lathe? 	couldn't I be lathing?
couldn't you be lathing?
couldn't he be lathing?
couldn't we be lathing?
couldn't you be lathing?
couldn't they be lathing? 	couldn't I have lathed?
couldn't you have lathed?
couldn't he have lathed?
couldn't we have lathed?
couldn't you have lathed?
couldn't they have lathed? 	couldn't I have been lathing?
couldn't you have been lathing?
couldn't he have been lathing?
couldn't we have been lathing?
couldn't you have been lathing?
couldn't they have been lathing?