English verb conjugation
CAN DOVETAIL

Regular verb: dovetail - dovetailed - dovetailed

Affirmation

Simple form	V-ing form
I can dovetail you can dovetail he can dovetail we can dovetail you can dovetail they can dovetail	I can be dovetailing you can be dovetailing he can be dovetailing we can be dovetailing you can be dovetailing they can be dovetailing
Perfect	V-ing perfect
I can have dovetailed you can have dovetailed he can have dovetailed we can have dovetailed you can have dovetailed they can have dovetailed	I can have been dovetailing you can have been dovetailing he can have been dovetailing we can have been dovetailing you can have been dovetailing they can have been dovetailing

Negation

Simple form	V-ing form
I cannot dovetail you cannot dovetail he cannot dovetail we cannot dovetail you cannot dovetail they cannot dovetail	I cannot be dovetailing you cannot be dovetailing he cannot be dovetailing we cannot be dovetailing you cannot be dovetailing they cannot be dovetailing
Perfect	V-ing perfect
I cannot have dovetailed you cannot have dovetailed he cannot have dovetailed we cannot have dovetailed you cannot have dovetailed they cannot have dovetailed	I cannot have been dovetailing you cannot have been dovetailing he cannot have been dovetailing we cannot have been dovetailing you cannot have been dovetailing they cannot have been dovetailing

Interrogative form

Simple form	V-ing form
can I dovetail? can you dovetail? can he dovetail? can we dovetail? can you dovetail? can they dovetail?	can I be dovetailing? can you be dovetailing? can he be dovetailing? can we be dovetailing? can you be dovetailing? can they be dovetailing?
Perfect	V-ing perfect
can I have dovetailed? can you have dovetailed? can he have dovetailed? can we have dovetailed? can you have dovetailed? can they have dovetailed?	can I have been dovetailing? can you have been dovetailing? can he have been dovetailing? can we have been dovetailing? can you have been dovetailing? can they have been dovetailing?

Interro-negative form

Simple form	V-ing form
can I not dovetail? can you not dovetail? can he not dovetail? can we not dovetail? can you not dovetail? can they not dovetail?	can I not be dovetailing? can you not be dovetailing? can he not be dovetailing? can we not be dovetailing? can you not be dovetailing? can they not be dovetailing?
Perfect	V-ing perfect
can I not have dovetailed? can you not have dovetailed? can he not have dovetailed? can we not have dovetailed? can you not have dovetailed? can they not have dovetailed?	can I not have been dovetailing? can you not have been dovetailing? can he not have been dovetailing? can we not have been dovetailing? can you not have been dovetailing? can they not have been dovetailing?