can span
Regular verb: span - spanned- spanned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can span
you can span
she can span
we can span
you can span
they can span 	I can be spanning
you can be spanning
she can be spanning
we can be spanning
you can be spanning
they can be spanning	I can have spanned
you can have spanned
she can have spanned
we can have spanned
you can have spanned
they can have spanned	I can have been spanning
you can have been spanning
she can have been spanning
we can have been spanning
you can have been spanning
they can have been spanning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't span
you can't span
she can't span
we can't span
you can't span
they can't span 	I can't be spanning
you can't be spanning
she can't be spanning
we can't be spanning
you can't be spanning
they can't be spanning	I can't have spanned
you can't have spanned
she can't have spanned
we can't have spanned
you can't have spanned
they can't have spanned	I can't have been spanning
you can't have been spanning
she can't have been spanning
we can't have been spanning
you can't have been spanning
they can't have been spanning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I span?
can you span?
can she span?
can we span?
can you span?
can they span? 	can I be spanning?
can you be spanning?
can she be spanning?
can we be spanning?
can you be spanning?
can they be spanning? 	can I have spanned?
can you have spanned?
can she have spanned?
can we have spanned?
can you have spanned?
can they have spanned? 	can I have been spanning?
can you have been spanning?
can she have been spanning?
can we have been spanning?
can you have been spanning?
can they have been spanning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I span?
can't you span?
can't she span?
can't we span?
can't you span?
can't they span? 	can't I be spanning?
can't you be spanning?
can't she be spanning?
can't we be spanning?
can't you be spanning?
can't they be spanning? 	can't I have spanned?
can't you have spanned?
can't she have spanned?
can't we have spanned?
can't you have spanned?
can't they have spanned? 	can't I have been spanning?
can't you have been spanning?
can't she have been spanning?
can't we have been spanning?
can't you have been spanning?
can't they have been spanning?