can keyboard
Regular verb: keyboard - keyboarded- keyboarded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can keyboard
you can keyboard
she can keyboard
we can keyboard
you can keyboard
they can keyboard 	I can be keyboarding
you can be keyboarding
she can be keyboarding
we can be keyboarding
you can be keyboarding
they can be keyboarding	I can have keyboarded
you can have keyboarded
she can have keyboarded
we can have keyboarded
you can have keyboarded
they can have keyboarded	I can have been keyboarding
you can have been keyboarding
she can have been keyboarding
we can have been keyboarding
you can have been keyboarding
they can have been keyboarding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot keyboard
you cannot keyboard
she cannot keyboard
we cannot keyboard
you cannot keyboard
they cannot keyboard 	I cannot be keyboarding
you cannot be keyboarding
she cannot be keyboarding
we cannot be keyboarding
you cannot be keyboarding
they cannot be keyboarding	I cannot have keyboarded
you cannot have keyboarded
she cannot have keyboarded
we cannot have keyboarded
you cannot have keyboarded
they cannot have keyboarded	I cannot have been keyboarding
you cannot have been keyboarding
she cannot have been keyboarding
we cannot have been keyboarding
you cannot have been keyboarding
they cannot have been keyboarding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I keyboard?
can you keyboard?
can she keyboard?
can we keyboard?
can you keyboard?
can they keyboard? 	can I be keyboarding?
can you be keyboarding?
can she be keyboarding?
can we be keyboarding?
can you be keyboarding?
can they be keyboarding? 	can I have keyboarded?
can you have keyboarded?
can she have keyboarded?
can we have keyboarded?
can you have keyboarded?
can they have keyboarded? 	can I have been keyboarding?
can you have been keyboarding?
can she have been keyboarding?
can we have been keyboarding?
can you have been keyboarding?
can they have been keyboarding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not keyboard?
can you not keyboard?
can she not keyboard?
can we not keyboard?
can you not keyboard?
can they not keyboard? 	can I not be keyboarding?
can you not be keyboarding?
can she not be keyboarding?
can we not be keyboarding?
can you not be keyboarding?
can they not be keyboarding? 	can I not have keyboarded?
can you not have keyboarded?
can she not have keyboarded?
can we not have keyboarded?
can you not have keyboarded?
can they not have keyboarded? 	can I not have been keyboarding?
can you not have been keyboarding?
can she not have been keyboarding?
can we not have been keyboarding?
can you not have been keyboarding?
can they not have been keyboarding?