can snowboard
Regular verb: snowboard - snowboarded- snowboarded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can snowboard
you can snowboard
he can snowboard
we can snowboard
you can snowboard
they can snowboard 	I can be snowboarding
you can be snowboarding
he can be snowboarding
we can be snowboarding
you can be snowboarding
they can be snowboarding	I can have snowboarded
you can have snowboarded
he can have snowboarded
we can have snowboarded
you can have snowboarded
they can have snowboarded	I can have been snowboarding
you can have been snowboarding
he can have been snowboarding
we can have been snowboarding
you can have been snowboarding
they can have been snowboarding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't snowboard
you can't snowboard
he can't snowboard
we can't snowboard
you can't snowboard
they can't snowboard 	I can't be snowboarding
you can't be snowboarding
he can't be snowboarding
we can't be snowboarding
you can't be snowboarding
they can't be snowboarding	I can't have snowboarded
you can't have snowboarded
he can't have snowboarded
we can't have snowboarded
you can't have snowboarded
they can't have snowboarded	I can't have been snowboarding
you can't have been snowboarding
he can't have been snowboarding
we can't have been snowboarding
you can't have been snowboarding
they can't have been snowboarding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I snowboard?
can you snowboard?
can he snowboard?
can we snowboard?
can you snowboard?
can they snowboard? 	can I be snowboarding?
can you be snowboarding?
can he be snowboarding?
can we be snowboarding?
can you be snowboarding?
can they be snowboarding? 	can I have snowboarded?
can you have snowboarded?
can he have snowboarded?
can we have snowboarded?
can you have snowboarded?
can they have snowboarded? 	can I have been snowboarding?
can you have been snowboarding?
can he have been snowboarding?
can we have been snowboarding?
can you have been snowboarding?
can they have been snowboarding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I snowboard?
can't you snowboard?
can't he snowboard?
can't we snowboard?
can't you snowboard?
can't they snowboard? 	can't I be snowboarding?
can't you be snowboarding?
can't he be snowboarding?
can't we be snowboarding?
can't you be snowboarding?
can't they be snowboarding? 	can't I have snowboarded?
can't you have snowboarded?
can't he have snowboarded?
can't we have snowboarded?
can't you have snowboarded?
can't they have snowboarded? 	can't I have been snowboarding?
can't you have been snowboarding?
can't he have been snowboarding?
can't we have been snowboarding?
can't you have been snowboarding?
can't they have been snowboarding?