English verb conjugation
COULD SUPERCALENDER

Regular verb: supercalender - supercalendered - supercalendered

Affirmation

Simple form	V-ing form
I could supercalender you could supercalender he could supercalender we could supercalender you could supercalender they could supercalender	I could be supercalendering you could be supercalendering he could be supercalendering we could be supercalendering you could be supercalendering they could be supercalendering
Perfect	V-ing perfect
I could have supercalendered you could have supercalendered he could have supercalendered we could have supercalendered you could have supercalendered they could have supercalendered	I could have been supercalendering you could have been supercalendering he could have been supercalendering we could have been supercalendering you could have been supercalendering they could have been supercalendering

Negation

Simple form	V-ing form
I couldn't supercalender you couldn't supercalender he couldn't supercalender we couldn't supercalender you couldn't supercalender they couldn't supercalender	I couldn't be supercalendering you couldn't be supercalendering he couldn't be supercalendering we couldn't be supercalendering you couldn't be supercalendering they couldn't be supercalendering
Perfect	V-ing perfect
I couldn't have supercalendered you couldn't have supercalendered he couldn't have supercalendered we couldn't have supercalendered you couldn't have supercalendered they couldn't have supercalendered	I couldn't have been supercalendering you couldn't have been supercalendering he couldn't have been supercalendering we couldn't have been supercalendering you couldn't have been supercalendering they couldn't have been supercalendering

Interrogative form

Simple form	V-ing form
could I supercalender? could you supercalender? could he supercalender? could we supercalender? could you supercalender? could they supercalender?	could I be supercalendering? could you be supercalendering? could he be supercalendering? could we be supercalendering? could you be supercalendering? could they be supercalendering?
Perfect	V-ing perfect
could I have supercalendered? could you have supercalendered? could he have supercalendered? could we have supercalendered? could you have supercalendered? could they have supercalendered?	could I have been supercalendering? could you have been supercalendering? could he have been supercalendering? could we have been supercalendering? could you have been supercalendering? could they have been supercalendering?

Interro-negative form

Simple form	V-ing form
couldn't I supercalender? couldn't you supercalender? couldn't he supercalender? couldn't we supercalender? couldn't you supercalender? couldn't they supercalender?	couldn't I be supercalendering? couldn't you be supercalendering? couldn't he be supercalendering? couldn't we be supercalendering? couldn't you be supercalendering? couldn't they be supercalendering?
Perfect	V-ing perfect
couldn't I have supercalendered? couldn't you have supercalendered? couldn't he have supercalendered? couldn't we have supercalendered? couldn't you have supercalendered? couldn't they have supercalendered?	couldn't I have been supercalendering? couldn't you have been supercalendering? couldn't he have been supercalendering? couldn't we have been supercalendering? couldn't you have been supercalendering? couldn't they have been supercalendering?