English verb conjugation
COULD SPANK

Regular verb: spank - spanked - spanked

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?