English verb conjugation
COULD WASSAIL

Regular verb: wassail - wassailed - wassailed

Affirmation

Simple form	V-ing form
I could wassail you could wassail she could wassail we could wassail you could wassail they could wassail	I could be wassailing you could be wassailing she could be wassailing we could be wassailing you could be wassailing they could be wassailing
Perfect	V-ing perfect
I could have wassailed you could have wassailed she could have wassailed we could have wassailed you could have wassailed they could have wassailed	I could have been wassailing you could have been wassailing she could have been wassailing we could have been wassailing you could have been wassailing they could have been wassailing

Negation

Simple form	V-ing form
I couldn't wassail you couldn't wassail she couldn't wassail we couldn't wassail you couldn't wassail they couldn't wassail	I couldn't be wassailing you couldn't be wassailing she couldn't be wassailing we couldn't be wassailing you couldn't be wassailing they couldn't be wassailing
Perfect	V-ing perfect
I couldn't have wassailed you couldn't have wassailed she couldn't have wassailed we couldn't have wassailed you couldn't have wassailed they couldn't have wassailed	I couldn't have been wassailing you couldn't have been wassailing she couldn't have been wassailing we couldn't have been wassailing you couldn't have been wassailing they couldn't have been wassailing

Interrogative form

Simple form	V-ing form
could I wassail? could you wassail? could she wassail? could we wassail? could you wassail? could they wassail?	could I be wassailing? could you be wassailing? could she be wassailing? could we be wassailing? could you be wassailing? could they be wassailing?
Perfect	V-ing perfect
could I have wassailed? could you have wassailed? could she have wassailed? could we have wassailed? could you have wassailed? could they have wassailed?	could I have been wassailing? could you have been wassailing? could she have been wassailing? could we have been wassailing? could you have been wassailing? could they have been wassailing?

Interro-negative form

Simple form	V-ing form
couldn't I wassail? couldn't you wassail? couldn't she wassail? couldn't we wassail? couldn't you wassail? couldn't they wassail?	couldn't I be wassailing? couldn't you be wassailing? couldn't she be wassailing? couldn't we be wassailing? couldn't you be wassailing? couldn't they be wassailing?
Perfect	V-ing perfect
couldn't I have wassailed? couldn't you have wassailed? couldn't she have wassailed? couldn't we have wassailed? couldn't you have wassailed? couldn't they have wassailed?	couldn't I have been wassailing? couldn't you have been wassailing? couldn't she have been wassailing? couldn't we have been wassailing? couldn't you have been wassailing? couldn't they have been wassailing?