English verb conjugation
CAN KERN

Regular verb: kern - kerned - kerned

Affirmation

Simple form	V-ing form
I can kern you can kern he can kern we can kern you can kern they can kern	I can be kerning you can be kerning he can be kerning we can be kerning you can be kerning they can be kerning
Perfect	V-ing perfect
I can have kerned you can have kerned he can have kerned we can have kerned you can have kerned they can have kerned	I can have been kerning you can have been kerning he can have been kerning we can have been kerning you can have been kerning they can have been kerning

Negation

Simple form	V-ing form
I can't kern you can't kern he can't kern we can't kern you can't kern they can't kern	I can't be kerning you can't be kerning he can't be kerning we can't be kerning you can't be kerning they can't be kerning
Perfect	V-ing perfect
I can't have kerned you can't have kerned he can't have kerned we can't have kerned you can't have kerned they can't have kerned	I can't have been kerning you can't have been kerning he can't have been kerning we can't have been kerning you can't have been kerning they can't have been kerning

Interrogative form

Simple form	V-ing form
can I kern? can you kern? can he kern? can we kern? can you kern? can they kern?	can I be kerning? can you be kerning? can he be kerning? can we be kerning? can you be kerning? can they be kerning?
Perfect	V-ing perfect
can I have kerned? can you have kerned? can he have kerned? can we have kerned? can you have kerned? can they have kerned?	can I have been kerning? can you have been kerning? can he have been kerning? can we have been kerning? can you have been kerning? can they have been kerning?

Interro-negative form

Simple form	V-ing form
can't I kern? can't you kern? can't he kern? can't we kern? can't you kern? can't they kern?	can't I be kerning? can't you be kerning? can't he be kerning? can't we be kerning? can't you be kerning? can't they be kerning?
Perfect	V-ing perfect
can't I have kerned? can't you have kerned? can't he have kerned? can't we have kerned? can't you have kerned? can't they have kerned?	can't I have been kerning? can't you have been kerning? can't he have been kerning? can't we have been kerning? can't you have been kerning? can't they have been kerning?