English verb conjugation
CAN SKI SKI

Regular verb: ski ski - ski skied - ski skied

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I can ski ski you can ski ski he can ski ski we can ski ski you can ski ski they can ski ski	I can be ski skiing you can be ski skiing he can be ski skiing we can be ski skiing you can be ski skiing they can be ski skiing
Perfect	V-ing perfect
I can have ski skied you can have ski skied he can have ski skied we can have ski skied you can have ski skied they can have ski skied	I can have been ski skiing you can have been ski skiing he can have been ski skiing we can have been ski skiing you can have been ski skiing they can have been ski skiing

Negation

Simple form	V-ing form
I can't ski ski you can't ski ski he can't ski ski we can't ski ski you can't ski ski they can't ski ski	I can't be ski skiing you can't be ski skiing he can't be ski skiing we can't be ski skiing you can't be ski skiing they can't be ski skiing
Perfect	V-ing perfect
I can't have ski skied you can't have ski skied he can't have ski skied we can't have ski skied you can't have ski skied they can't have ski skied	I can't have been ski skiing you can't have been ski skiing he can't have been ski skiing we can't have been ski skiing you can't have been ski skiing they can't have been ski skiing

Interrogative form

Simple form	V-ing form
can I ski ski? can you ski ski? can he ski ski? can we ski ski? can you ski ski? can they ski ski?	can I be ski skiing? can you be ski skiing? can he be ski skiing? can we be ski skiing? can you be ski skiing? can they be ski skiing?
Perfect	V-ing perfect
can I have ski skied? can you have ski skied? can he have ski skied? can we have ski skied? can you have ski skied? can they have ski skied?	can I have been ski skiing? can you have been ski skiing? can he have been ski skiing? can we have been ski skiing? can you have been ski skiing? can they have been ski skiing?

Interro-negative form

Simple form	V-ing form
can't I ski ski? can't you ski ski? can't he ski ski? can't we ski ski? can't you ski ski? can't they ski ski?	can't I be ski skiing? can't you be ski skiing? can't he be ski skiing? can't we be ski skiing? can't you be ski skiing? can't they be ski skiing?
Perfect	V-ing perfect
can't I have ski skied? can't you have ski skied? can't he have ski skied? can't we have ski skied? can't you have ski skied? can't they have ski skied?	can't I have been ski skiing? can't you have been ski skiing? can't he have been ski skiing? can't we have been ski skiing? can't you have been ski skiing? can't they have been ski skiing?