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