English verb conjugation
CAN SHIRTTAIL

Regular verb: shirttail - shirttailed - shirttailed

Affirmation

Simple form	V-ing form
I can shirttail you can shirttail she can shirttail we can shirttail you can shirttail they can shirttail	I can be shirttailing you can be shirttailing she can be shirttailing we can be shirttailing you can be shirttailing they can be shirttailing
Perfect	V-ing perfect
I can have shirttailed you can have shirttailed she can have shirttailed we can have shirttailed you can have shirttailed they can have shirttailed	I can have been shirttailing you can have been shirttailing she can have been shirttailing we can have been shirttailing you can have been shirttailing they can have been shirttailing

Negation

Simple form	V-ing form
I can't shirttail you can't shirttail she can't shirttail we can't shirttail you can't shirttail they can't shirttail	I can't be shirttailing you can't be shirttailing she can't be shirttailing we can't be shirttailing you can't be shirttailing they can't be shirttailing
Perfect	V-ing perfect
I can't have shirttailed you can't have shirttailed she can't have shirttailed we can't have shirttailed you can't have shirttailed they can't have shirttailed	I can't have been shirttailing you can't have been shirttailing she can't have been shirttailing we can't have been shirttailing you can't have been shirttailing they can't have been shirttailing

Interrogative form

Simple form	V-ing form
can I shirttail? can you shirttail? can she shirttail? can we shirttail? can you shirttail? can they shirttail?	can I be shirttailing? can you be shirttailing? can she be shirttailing? can we be shirttailing? can you be shirttailing? can they be shirttailing?
Perfect	V-ing perfect
can I have shirttailed? can you have shirttailed? can she have shirttailed? can we have shirttailed? can you have shirttailed? can they have shirttailed?	can I have been shirttailing? can you have been shirttailing? can she have been shirttailing? can we have been shirttailing? can you have been shirttailing? can they have been shirttailing?

Interro-negative form

Simple form	V-ing form
can't I shirttail? can't you shirttail? can't she shirttail? can't we shirttail? can't you shirttail? can't they shirttail?	can't I be shirttailing? can't you be shirttailing? can't she be shirttailing? can't we be shirttailing? can't you be shirttailing? can't they be shirttailing?
Perfect	V-ing perfect
can't I have shirttailed? can't you have shirttailed? can't she have shirttailed? can't we have shirttailed? can't you have shirttailed? can't they have shirttailed?	can't I have been shirttailing? can't you have been shirttailing? can't she have been shirttailing? can't we have been shirttailing? can't you have been shirttailing? can't they have been shirttailing?