I could spindle you could spindle he could spindle we could spindle you could spindle they could spindle
V-ing form
I could be spindling you could be spindling he could be spindling we could be spindling you could be spindling they could be spindling
Perfect
I could have spindled you could have spindled he could have spindled we could have spindled you could have spindled they could have spindled
V-ing perfect
I could have been spindling you could have been spindling he could have been spindling we could have been spindling you could have been spindling they could have been spindling
Negation
Simple form
I could not spindle you could not spindle he could not spindle we could not spindle you could not spindle they could not spindle
V-ing form
I could not be spindling you could not be spindling he could not be spindling we could not be spindling you could not be spindling they could not be spindling
Perfect
I could not have spindled you could not have spindled he could not have spindled we could not have spindled you could not have spindled they could not have spindled
V-ing perfect
I could not have been spindling you could not have been spindling he could not have been spindling we could not have been spindling you could not have been spindling they could not have been spindling
Interrogative form
Simple form
could I spindle? could you spindle? could he spindle? could we spindle? could you spindle? could they spindle?
V-ing form
could I be spindling? could you be spindling? could he be spindling? could we be spindling? could you be spindling? could they be spindling?
Perfect
could I have spindled? could you have spindled? could he have spindled? could we have spindled? could you have spindled? could they have spindled?
V-ing perfect
could I have been spindling? could you have been spindling? could he have been spindling? could we have been spindling? could you have been spindling? could they have been spindling?
Interro-negative form
Simple form
could I not spindle? could you not spindle? could he not spindle? could we not spindle? could you not spindle? could they not spindle?
V-ing form
could I not be spindling? could you not be spindling? could he not be spindling? could we not be spindling? could you not be spindling? could they not be spindling?
Perfect
could I not have spindled? could you not have spindled? could he not have spindled? could we not have spindled? could you not have spindled? could they not have spindled?
V-ing perfect
could I not have been spindling? could you not have been spindling? could he not have been spindling? could we not have been spindling? could you not have been spindling? could they not have been spindling?