can work
Regular verb: work - worked- worked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can work
you can work
he can work
we can work
you can work
they can work 	I can be working
you can be working
he can be working
we can be working
you can be working
they can be working	I can have worked
you can have worked
he can have worked
we can have worked
you can have worked
they can have worked	I can have been working
you can have been working
he can have been working
we can have been working
you can have been working
they can have been working	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't work
you can't work
he can't work
we can't work
you can't work
they can't work 	I can't be working
you can't be working
he can't be working
we can't be working
you can't be working
they can't be working	I can't have worked
you can't have worked
he can't have worked
we can't have worked
you can't have worked
they can't have worked	I can't have been working
you can't have been working
he can't have been working
we can't have been working
you can't have been working
they can't have been working	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I work?
can you work?
can he work?
can we work?
can you work?
can they work? 	can I be working?
can you be working?
can he be working?
can we be working?
can you be working?
can they be working? 	can I have worked?
can you have worked?
can he have worked?
can we have worked?
can you have worked?
can they have worked? 	can I have been working?
can you have been working?
can he have been working?
can we have been working?
can you have been working?
can they have been working? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I work?
can't you work?
can't he work?
can't we work?
can't you work?
can't they work? 	can't I be working?
can't you be working?
can't he be working?
can't we be working?
can't you be working?
can't they be working? 	can't I have worked?
can't you have worked?
can't he have worked?
can't we have worked?
can't you have worked?
can't they have worked? 	can't I have been working?
can't you have been working?
can't he have been working?
can't we have been working?
can't you have been working?
can't they have been working?