I could lacinate you could lacinate he could lacinate we could lacinate you could lacinate they could lacinate
V-ing form
I could be lacinating you could be lacinating he could be lacinating we could be lacinating you could be lacinating they could be lacinating
Perfect
I could have lacinated you could have lacinated he could have lacinated we could have lacinated you could have lacinated they could have lacinated
V-ing perfect
I could have been lacinating you could have been lacinating he could have been lacinating we could have been lacinating you could have been lacinating they could have been lacinating
Negation
Simple form
I couldn't lacinate you couldn't lacinate he couldn't lacinate we couldn't lacinate you couldn't lacinate they couldn't lacinate
V-ing form
I couldn't be lacinating you couldn't be lacinating he couldn't be lacinating we couldn't be lacinating you couldn't be lacinating they couldn't be lacinating
Perfect
I couldn't have lacinated you couldn't have lacinated he couldn't have lacinated we couldn't have lacinated you couldn't have lacinated they couldn't have lacinated
V-ing perfect
I couldn't have been lacinating you couldn't have been lacinating he couldn't have been lacinating we couldn't have been lacinating you couldn't have been lacinating they couldn't have been lacinating
Interrogative form
Simple form
could I lacinate? could you lacinate? could he lacinate? could we lacinate? could you lacinate? could they lacinate?
V-ing form
could I be lacinating? could you be lacinating? could he be lacinating? could we be lacinating? could you be lacinating? could they be lacinating?
Perfect
could I have lacinated? could you have lacinated? could he have lacinated? could we have lacinated? could you have lacinated? could they have lacinated?
V-ing perfect
could I have been lacinating? could you have been lacinating? could he have been lacinating? could we have been lacinating? could you have been lacinating? could they have been lacinating?
Interro-negative form
Simple form
couldn't I lacinate? couldn't you lacinate? couldn't he lacinate? couldn't we lacinate? couldn't you lacinate? couldn't they lacinate?
V-ing form
couldn't I be lacinating? couldn't you be lacinating? couldn't he be lacinating? couldn't we be lacinating? couldn't you be lacinating? couldn't they be lacinating?
Perfect
couldn't I have lacinated? couldn't you have lacinated? couldn't he have lacinated? couldn't we have lacinated? couldn't you have lacinated? couldn't they have lacinated?
V-ing perfect
couldn't I have been lacinating? couldn't you have been lacinating? couldn't he have been lacinating? couldn't we have been lacinating? couldn't you have been lacinating? couldn't they have been lacinating?