English verb conjugation
CAN FISHTAIL

Regular verb: fishtail - fishtailed - fishtailed

Affirmation

Simple form	V-ing form
I can fishtail you can fishtail she can fishtail we can fishtail you can fishtail they can fishtail	I can be fishtailing you can be fishtailing she can be fishtailing we can be fishtailing you can be fishtailing they can be fishtailing
Perfect	V-ing perfect
I can have fishtailed you can have fishtailed she can have fishtailed we can have fishtailed you can have fishtailed they can have fishtailed	I can have been fishtailing you can have been fishtailing she can have been fishtailing we can have been fishtailing you can have been fishtailing they can have been fishtailing

Negation

Simple form	V-ing form
I cannot fishtail you cannot fishtail she cannot fishtail we cannot fishtail you cannot fishtail they cannot fishtail	I cannot be fishtailing you cannot be fishtailing she cannot be fishtailing we cannot be fishtailing you cannot be fishtailing they cannot be fishtailing
Perfect	V-ing perfect
I cannot have fishtailed you cannot have fishtailed she cannot have fishtailed we cannot have fishtailed you cannot have fishtailed they cannot have fishtailed	I cannot have been fishtailing you cannot have been fishtailing she cannot have been fishtailing we cannot have been fishtailing you cannot have been fishtailing they cannot have been fishtailing

Interrogative form

Simple form	V-ing form
can I fishtail? can you fishtail? can she fishtail? can we fishtail? can you fishtail? can they fishtail?	can I be fishtailing? can you be fishtailing? can she be fishtailing? can we be fishtailing? can you be fishtailing? can they be fishtailing?
Perfect	V-ing perfect
can I have fishtailed? can you have fishtailed? can she have fishtailed? can we have fishtailed? can you have fishtailed? can they have fishtailed?	can I have been fishtailing? can you have been fishtailing? can she have been fishtailing? can we have been fishtailing? can you have been fishtailing? can they have been fishtailing?

Interro-negative form

Simple form	V-ing form
can I not fishtail? can you not fishtail? can she not fishtail? can we not fishtail? can you not fishtail? can they not fishtail?	can I not be fishtailing? can you not be fishtailing? can she not be fishtailing? can we not be fishtailing? can you not be fishtailing? can they not be fishtailing?
Perfect	V-ing perfect
can I not have fishtailed? can you not have fishtailed? can she not have fishtailed? can we not have fishtailed? can you not have fishtailed? can they not have fishtailed?	can I not have been fishtailing? can you not have been fishtailing? can she not have been fishtailing? can we not have been fishtailing? can you not have been fishtailing? can they not have been fishtailing?