English verb conjugation
COULD JAIL

Regular verb: jail - jailed - jailed

Affirmation

Simple form	V-ing form
I could jail you could jail he could jail we could jail you could jail they could jail	I could be jailing you could be jailing he could be jailing we could be jailing you could be jailing they could be jailing
Perfect	V-ing perfect
I could have jailed you could have jailed he could have jailed we could have jailed you could have jailed they could have jailed	I could have been jailing you could have been jailing he could have been jailing we could have been jailing you could have been jailing they could have been jailing

Negation

Simple form	V-ing form
I couldn't jail you couldn't jail he couldn't jail we couldn't jail you couldn't jail they couldn't jail	I couldn't be jailing you couldn't be jailing he couldn't be jailing we couldn't be jailing you couldn't be jailing they couldn't be jailing
Perfect	V-ing perfect
I couldn't have jailed you couldn't have jailed he couldn't have jailed we couldn't have jailed you couldn't have jailed they couldn't have jailed	I couldn't have been jailing you couldn't have been jailing he couldn't have been jailing we couldn't have been jailing you couldn't have been jailing they couldn't have been jailing

Interrogative form

Simple form	V-ing form
could I jail? could you jail? could he jail? could we jail? could you jail? could they jail?	could I be jailing? could you be jailing? could he be jailing? could we be jailing? could you be jailing? could they be jailing?
Perfect	V-ing perfect
could I have jailed? could you have jailed? could he have jailed? could we have jailed? could you have jailed? could they have jailed?	could I have been jailing? could you have been jailing? could he have been jailing? could we have been jailing? could you have been jailing? could they have been jailing?

Interro-negative form

Simple form	V-ing form
couldn't I jail? couldn't you jail? couldn't he jail? couldn't we jail? couldn't you jail? couldn't they jail?	couldn't I be jailing? couldn't you be jailing? couldn't he be jailing? couldn't we be jailing? couldn't you be jailing? couldn't they be jailing?
Perfect	V-ing perfect
couldn't I have jailed? couldn't you have jailed? couldn't he have jailed? couldn't we have jailed? couldn't you have jailed? couldn't they have jailed?	couldn't I have been jailing? couldn't you have been jailing? couldn't he have been jailing? couldn't we have been jailing? couldn't you have been jailing? couldn't they have been jailing?