English verb conjugation
CAN SKIRL

Regular verb: skirl - skirled - skirled

Affirmation

Simple form	V-ing form
I can skirl you can skirl he can skirl we can skirl you can skirl they can skirl	I can be skirling you can be skirling he can be skirling we can be skirling you can be skirling they can be skirling
Perfect	V-ing perfect
I can have skirled you can have skirled he can have skirled we can have skirled you can have skirled they can have skirled	I can have been skirling you can have been skirling he can have been skirling we can have been skirling you can have been skirling they can have been skirling

Negation

Simple form	V-ing form
I can't skirl you can't skirl he can't skirl we can't skirl you can't skirl they can't skirl	I can't be skirling you can't be skirling he can't be skirling we can't be skirling you can't be skirling they can't be skirling
Perfect	V-ing perfect
I can't have skirled you can't have skirled he can't have skirled we can't have skirled you can't have skirled they can't have skirled	I can't have been skirling you can't have been skirling he can't have been skirling we can't have been skirling you can't have been skirling they can't have been skirling

Interrogative form

Simple form	V-ing form
can I skirl? can you skirl? can he skirl? can we skirl? can you skirl? can they skirl?	can I be skirling? can you be skirling? can he be skirling? can we be skirling? can you be skirling? can they be skirling?
Perfect	V-ing perfect
can I have skirled? can you have skirled? can he have skirled? can we have skirled? can you have skirled? can they have skirled?	can I have been skirling? can you have been skirling? can he have been skirling? can we have been skirling? can you have been skirling? can they have been skirling?

Interro-negative form

Simple form	V-ing form
can't I skirl? can't you skirl? can't he skirl? can't we skirl? can't you skirl? can't they skirl?	can't I be skirling? can't you be skirling? can't he be skirling? can't we be skirling? can't you be skirling? can't they be skirling?
Perfect	V-ing perfect
can't I have skirled? can't you have skirled? can't he have skirled? can't we have skirled? can't you have skirled? can't they have skirled?	can't I have been skirling? can't you have been skirling? can't he have been skirling? can't we have been skirling? can't you have been skirling? can't they have been skirling?