could spank
Regular verb: spank - spanked- spanked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could spank
you could spank
she could spank
we could spank
you could spank
they could spank 	I could be spanking
you could be spanking
she could be spanking
we could be spanking
you could be spanking
they could be spanking	I could have spanked
you could have spanked
she could have spanked
we could have spanked
you could have spanked
they could have spanked	I could have been spanking
you could have been spanking
she could have been spanking
we could have been spanking
you could have been spanking
they could have been spanking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't spank
you couldn't spank
she couldn't spank
we couldn't spank
you couldn't spank
they couldn't spank 	I couldn't be spanking
you couldn't be spanking
she couldn't be spanking
we couldn't be spanking
you couldn't be spanking
they couldn't be spanking	I couldn't have spanked
you couldn't have spanked
she couldn't have spanked
we couldn't have spanked
you couldn't have spanked
they couldn't have spanked	I couldn't have been spanking
you couldn't have been spanking
she couldn't have been spanking
we couldn't have been spanking
you couldn't have been spanking
they couldn't have been spanking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I spank?
could you spank?
could she spank?
could we spank?
could you spank?
could they spank? 	could I be spanking?
could you be spanking?
could she be spanking?
could we be spanking?
could you be spanking?
could they be spanking? 	could I have spanked?
could you have spanked?
could she have spanked?
could we have spanked?
could you have spanked?
could they have spanked? 	could I have been spanking?
could you have been spanking?
could she have been spanking?
could we have been spanking?
could you have been spanking?
could they have been spanking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I spank?
couldn't you spank?
couldn't she spank?
couldn't we spank?
couldn't you spank?
couldn't they spank? 	couldn't I be spanking?
couldn't you be spanking?
couldn't she be spanking?
couldn't we be spanking?
couldn't you be spanking?
couldn't they be spanking? 	couldn't I have spanked?
couldn't you have spanked?
couldn't she have spanked?
couldn't we have spanked?
couldn't you have spanked?
couldn't they have spanked? 	couldn't I have been spanking?
couldn't you have been spanking?
couldn't she have been spanking?
couldn't we have been spanking?
couldn't you have been spanking?
couldn't they have been spanking?