could roast
Regular verb: roast - roasted- roasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could roast
you could roast
she could roast
we could roast
you could roast
they could roast 	I could be roasting
you could be roasting
she could be roasting
we could be roasting
you could be roasting
they could be roasting	I could have roasted
you could have roasted
she could have roasted
we could have roasted
you could have roasted
they could have roasted	I could have been roasting
you could have been roasting
she could have been roasting
we could have been roasting
you could have been roasting
they could have been roasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't roast
you couldn't roast
she couldn't roast
we couldn't roast
you couldn't roast
they couldn't roast 	I couldn't be roasting
you couldn't be roasting
she couldn't be roasting
we couldn't be roasting
you couldn't be roasting
they couldn't be roasting	I couldn't have roasted
you couldn't have roasted
she couldn't have roasted
we couldn't have roasted
you couldn't have roasted
they couldn't have roasted	I couldn't have been roasting
you couldn't have been roasting
she couldn't have been roasting
we couldn't have been roasting
you couldn't have been roasting
they couldn't have been roasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I roast?
could you roast?
could she roast?
could we roast?
could you roast?
could they roast? 	could I be roasting?
could you be roasting?
could she be roasting?
could we be roasting?
could you be roasting?
could they be roasting? 	could I have roasted?
could you have roasted?
could she have roasted?
could we have roasted?
could you have roasted?
could they have roasted? 	could I have been roasting?
could you have been roasting?
could she have been roasting?
could we have been roasting?
could you have been roasting?
could they have been roasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I roast?
couldn't you roast?
couldn't she roast?
couldn't we roast?
couldn't you roast?
couldn't they roast? 	couldn't I be roasting?
couldn't you be roasting?
couldn't she be roasting?
couldn't we be roasting?
couldn't you be roasting?
couldn't they be roasting? 	couldn't I have roasted?
couldn't you have roasted?
couldn't she have roasted?
couldn't we have roasted?
couldn't you have roasted?
couldn't they have roasted? 	couldn't I have been roasting?
couldn't you have been roasting?
couldn't she have been roasting?
couldn't we have been roasting?
couldn't you have been roasting?
couldn't they have been roasting?