I could dabble you could dabble he could dabble we could dabble you could dabble they could dabble
V-ing form
I could be dabbling you could be dabbling he could be dabbling we could be dabbling you could be dabbling they could be dabbling
Perfect
I could have dabbled you could have dabbled he could have dabbled we could have dabbled you could have dabbled they could have dabbled
V-ing perfect
I could have been dabbling you could have been dabbling he could have been dabbling we could have been dabbling you could have been dabbling they could have been dabbling
Negation
Simple form
I could not dabble you could not dabble he could not dabble we could not dabble you could not dabble they could not dabble
V-ing form
I could not be dabbling you could not be dabbling he could not be dabbling we could not be dabbling you could not be dabbling they could not be dabbling
Perfect
I could not have dabbled you could not have dabbled he could not have dabbled we could not have dabbled you could not have dabbled they could not have dabbled
V-ing perfect
I could not have been dabbling you could not have been dabbling he could not have been dabbling we could not have been dabbling you could not have been dabbling they could not have been dabbling
Interrogative form
Simple form
could I dabble? could you dabble? could he dabble? could we dabble? could you dabble? could they dabble?
V-ing form
could I be dabbling? could you be dabbling? could he be dabbling? could we be dabbling? could you be dabbling? could they be dabbling?
Perfect
could I have dabbled? could you have dabbled? could he have dabbled? could we have dabbled? could you have dabbled? could they have dabbled?
V-ing perfect
could I have been dabbling? could you have been dabbling? could he have been dabbling? could we have been dabbling? could you have been dabbling? could they have been dabbling?
Interro-negative form
Simple form
could I not dabble? could you not dabble? could he not dabble? could we not dabble? could you not dabble? could they not dabble?
V-ing form
could I not be dabbling? could you not be dabbling? could he not be dabbling? could we not be dabbling? could you not be dabbling? could they not be dabbling?
Perfect
could I not have dabbled? could you not have dabbled? could he not have dabbled? could we not have dabbled? could you not have dabbled? could they not have dabbled?
V-ing perfect
could I not have been dabbling? could you not have been dabbling? could he not have been dabbling? could we not have been dabbling? could you not have been dabbling? could they not have been dabbling?