could dip
Regular verb: dip - diped- diped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could dip
you could dip
he could dip
we could dip
you could dip
they could dip 	I could be diping
you could be diping
he could be diping
we could be diping
you could be diping
they could be diping	I could have diped
you could have diped
he could have diped
we could have diped
you could have diped
they could have diped	I could have been diping
you could have been diping
he could have been diping
we could have been diping
you could have been diping
they could have been diping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't dip
you couldn't dip
he couldn't dip
we couldn't dip
you couldn't dip
they couldn't dip 	I couldn't be diping
you couldn't be diping
he couldn't be diping
we couldn't be diping
you couldn't be diping
they couldn't be diping	I couldn't have diped
you couldn't have diped
he couldn't have diped
we couldn't have diped
you couldn't have diped
they couldn't have diped	I couldn't have been diping
you couldn't have been diping
he couldn't have been diping
we couldn't have been diping
you couldn't have been diping
they couldn't have been diping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I dip?
could you dip?
could he dip?
could we dip?
could you dip?
could they dip? 	could I be diping?
could you be diping?
could he be diping?
could we be diping?
could you be diping?
could they be diping? 	could I have diped?
could you have diped?
could he have diped?
could we have diped?
could you have diped?
could they have diped? 	could I have been diping?
could you have been diping?
could he have been diping?
could we have been diping?
could you have been diping?
could they have been diping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I dip?
couldn't you dip?
couldn't he dip?
couldn't we dip?
couldn't you dip?
couldn't they dip? 	couldn't I be diping?
couldn't you be diping?
couldn't he be diping?
couldn't we be diping?
couldn't you be diping?
couldn't they be diping? 	couldn't I have diped?
couldn't you have diped?
couldn't he have diped?
couldn't we have diped?
couldn't you have diped?
couldn't they have diped? 	couldn't I have been diping?
couldn't you have been diping?
couldn't he have been diping?
couldn't we have been diping?
couldn't you have been diping?
couldn't they have been diping?