English verb conjugation
COULD HIGHTAIL

Regular verb: hightail - hightailed - hightailed

Affirmation

Simple form	V-ing form
I could hightail you could hightail he could hightail we could hightail you could hightail they could hightail	I could be hightailing you could be hightailing he could be hightailing we could be hightailing you could be hightailing they could be hightailing
Perfect	V-ing perfect
I could have hightailed you could have hightailed he could have hightailed we could have hightailed you could have hightailed they could have hightailed	I could have been hightailing you could have been hightailing he could have been hightailing we could have been hightailing you could have been hightailing they could have been hightailing

Negation

Simple form	V-ing form
I couldn't hightail you couldn't hightail he couldn't hightail we couldn't hightail you couldn't hightail they couldn't hightail	I couldn't be hightailing you couldn't be hightailing he couldn't be hightailing we couldn't be hightailing you couldn't be hightailing they couldn't be hightailing
Perfect	V-ing perfect
I couldn't have hightailed you couldn't have hightailed he couldn't have hightailed we couldn't have hightailed you couldn't have hightailed they couldn't have hightailed	I couldn't have been hightailing you couldn't have been hightailing he couldn't have been hightailing we couldn't have been hightailing you couldn't have been hightailing they couldn't have been hightailing

Interrogative form

Simple form	V-ing form
could I hightail? could you hightail? could he hightail? could we hightail? could you hightail? could they hightail?	could I be hightailing? could you be hightailing? could he be hightailing? could we be hightailing? could you be hightailing? could they be hightailing?
Perfect	V-ing perfect
could I have hightailed? could you have hightailed? could he have hightailed? could we have hightailed? could you have hightailed? could they have hightailed?	could I have been hightailing? could you have been hightailing? could he have been hightailing? could we have been hightailing? could you have been hightailing? could they have been hightailing?

Interro-negative form

Simple form	V-ing form
couldn't I hightail? couldn't you hightail? couldn't he hightail? couldn't we hightail? couldn't you hightail? couldn't they hightail?	couldn't I be hightailing? couldn't you be hightailing? couldn't he be hightailing? couldn't we be hightailing? couldn't you be hightailing? couldn't they be hightailing?
Perfect	V-ing perfect
couldn't I have hightailed? couldn't you have hightailed? couldn't he have hightailed? couldn't we have hightailed? couldn't you have hightailed? couldn't they have hightailed?	couldn't I have been hightailing? couldn't you have been hightailing? couldn't he have been hightailing? couldn't we have been hightailing? couldn't you have been hightailing? couldn't they have been hightailing?