English verb conjugation
COULD SCHOOL

Regular verb: school - schooled - schooled

Affirmation

Simple form	V-ing form
I could school you could school he could school we could school you could school they could school	I could be schooling you could be schooling he could be schooling we could be schooling you could be schooling they could be schooling
Perfect	V-ing perfect
I could have schooled you could have schooled he could have schooled we could have schooled you could have schooled they could have schooled	I could have been schooling you could have been schooling he could have been schooling we could have been schooling you could have been schooling they could have been schooling

Negation

Simple form	V-ing form
I couldn't school you couldn't school he couldn't school we couldn't school you couldn't school they couldn't school	I couldn't be schooling you couldn't be schooling he couldn't be schooling we couldn't be schooling you couldn't be schooling they couldn't be schooling
Perfect	V-ing perfect
I couldn't have schooled you couldn't have schooled he couldn't have schooled we couldn't have schooled you couldn't have schooled they couldn't have schooled	I couldn't have been schooling you couldn't have been schooling he couldn't have been schooling we couldn't have been schooling you couldn't have been schooling they couldn't have been schooling

Interrogative form

Simple form	V-ing form
could I school? could you school? could he school? could we school? could you school? could they school?	could I be schooling? could you be schooling? could he be schooling? could we be schooling? could you be schooling? could they be schooling?
Perfect	V-ing perfect
could I have schooled? could you have schooled? could he have schooled? could we have schooled? could you have schooled? could they have schooled?	could I have been schooling? could you have been schooling? could he have been schooling? could we have been schooling? could you have been schooling? could they have been schooling?

Interro-negative form

Simple form	V-ing form
couldn't I school? couldn't you school? couldn't he school? couldn't we school? couldn't you school? couldn't they school?	couldn't I be schooling? couldn't you be schooling? couldn't he be schooling? couldn't we be schooling? couldn't you be schooling? couldn't they be schooling?
Perfect	V-ing perfect
couldn't I have schooled? couldn't you have schooled? couldn't he have schooled? couldn't we have schooled? couldn't you have schooled? couldn't they have schooled?	couldn't I have been schooling? couldn't you have been schooling? couldn't he have been schooling? couldn't we have been schooling? couldn't you have been schooling? couldn't they have been schooling?