English verb conjugation
COULD COURSE

Regular verb: course - coursed - coursed

Affirmation

Simple form	V-ing form
I could course you could course he could course we could course you could course they could course	I could be coursing you could be coursing he could be coursing we could be coursing you could be coursing they could be coursing
Perfect	V-ing perfect
I could have coursed you could have coursed he could have coursed we could have coursed you could have coursed they could have coursed	I could have been coursing you could have been coursing he could have been coursing we could have been coursing you could have been coursing they could have been coursing

Negation

Simple form	V-ing form
I couldn't course you couldn't course he couldn't course we couldn't course you couldn't course they couldn't course	I couldn't be coursing you couldn't be coursing he couldn't be coursing we couldn't be coursing you couldn't be coursing they couldn't be coursing
Perfect	V-ing perfect
I couldn't have coursed you couldn't have coursed he couldn't have coursed we couldn't have coursed you couldn't have coursed they couldn't have coursed	I couldn't have been coursing you couldn't have been coursing he couldn't have been coursing we couldn't have been coursing you couldn't have been coursing they couldn't have been coursing

Interrogative form

Simple form	V-ing form
could I course? could you course? could he course? could we course? could you course? could they course?	could I be coursing? could you be coursing? could he be coursing? could we be coursing? could you be coursing? could they be coursing?
Perfect	V-ing perfect
could I have coursed? could you have coursed? could he have coursed? could we have coursed? could you have coursed? could they have coursed?	could I have been coursing? could you have been coursing? could he have been coursing? could we have been coursing? could you have been coursing? could they have been coursing?

Interro-negative form

Simple form	V-ing form
couldn't I course? couldn't you course? couldn't he course? couldn't we course? couldn't you course? couldn't they course?	couldn't I be coursing? couldn't you be coursing? couldn't he be coursing? couldn't we be coursing? couldn't you be coursing? couldn't they be coursing?
Perfect	V-ing perfect
couldn't I have coursed? couldn't you have coursed? couldn't he have coursed? couldn't we have coursed? couldn't you have coursed? couldn't they have coursed?	couldn't I have been coursing? couldn't you have been coursing? couldn't he have been coursing? couldn't we have been coursing? couldn't you have been coursing? couldn't they have been coursing?