could jewel
Regular verb: jewel - jeweled- jeweled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could jewel
you could jewel
he could jewel
we could jewel
you could jewel
they could jewel 	I could be jeweling
you could be jeweling
he could be jeweling
we could be jeweling
you could be jeweling
they could be jeweling	I could have jeweled
you could have jeweled
he could have jeweled
we could have jeweled
you could have jeweled
they could have jeweled	I could have been jeweling
you could have been jeweling
he could have been jeweling
we could have been jeweling
you could have been jeweling
they could have been jeweling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't jewel
you couldn't jewel
he couldn't jewel
we couldn't jewel
you couldn't jewel
they couldn't jewel 	I couldn't be jeweling
you couldn't be jeweling
he couldn't be jeweling
we couldn't be jeweling
you couldn't be jeweling
they couldn't be jeweling	I couldn't have jeweled
you couldn't have jeweled
he couldn't have jeweled
we couldn't have jeweled
you couldn't have jeweled
they couldn't have jeweled	I couldn't have been jeweling
you couldn't have been jeweling
he couldn't have been jeweling
we couldn't have been jeweling
you couldn't have been jeweling
they couldn't have been jeweling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I jewel?
could you jewel?
could he jewel?
could we jewel?
could you jewel?
could they jewel? 	could I be jeweling?
could you be jeweling?
could he be jeweling?
could we be jeweling?
could you be jeweling?
could they be jeweling? 	could I have jeweled?
could you have jeweled?
could he have jeweled?
could we have jeweled?
could you have jeweled?
could they have jeweled? 	could I have been jeweling?
could you have been jeweling?
could he have been jeweling?
could we have been jeweling?
could you have been jeweling?
could they have been jeweling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I jewel?
couldn't you jewel?
couldn't he jewel?
couldn't we jewel?
couldn't you jewel?
couldn't they jewel? 	couldn't I be jeweling?
couldn't you be jeweling?
couldn't he be jeweling?
couldn't we be jeweling?
couldn't you be jeweling?
couldn't they be jeweling? 	couldn't I have jeweled?
couldn't you have jeweled?
couldn't he have jeweled?
couldn't we have jeweled?
couldn't you have jeweled?
couldn't they have jeweled? 	couldn't I have been jeweling?
couldn't you have been jeweling?
couldn't he have been jeweling?
couldn't we have been jeweling?
couldn't you have been jeweling?
couldn't they have been jeweling?