can swan
Regular verb: swan - swaned- swaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can swan
you can swan
she can swan
we can swan
you can swan
they can swan 	I can be swaning
you can be swaning
she can be swaning
we can be swaning
you can be swaning
they can be swaning	I can have swaned
you can have swaned
she can have swaned
we can have swaned
you can have swaned
they can have swaned	I can have been swaning
you can have been swaning
she can have been swaning
we can have been swaning
you can have been swaning
they can have been swaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't swan
you can't swan
she can't swan
we can't swan
you can't swan
they can't swan 	I can't be swaning
you can't be swaning
she can't be swaning
we can't be swaning
you can't be swaning
they can't be swaning	I can't have swaned
you can't have swaned
she can't have swaned
we can't have swaned
you can't have swaned
they can't have swaned	I can't have been swaning
you can't have been swaning
she can't have been swaning
we can't have been swaning
you can't have been swaning
they can't have been swaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I swan?
can you swan?
can she swan?
can we swan?
can you swan?
can they swan? 	can I be swaning?
can you be swaning?
can she be swaning?
can we be swaning?
can you be swaning?
can they be swaning? 	can I have swaned?
can you have swaned?
can she have swaned?
can we have swaned?
can you have swaned?
can they have swaned? 	can I have been swaning?
can you have been swaning?
can she have been swaning?
can we have been swaning?
can you have been swaning?
can they have been swaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I swan?
can't you swan?
can't she swan?
can't we swan?
can't you swan?
can't they swan? 	can't I be swaning?
can't you be swaning?
can't she be swaning?
can't we be swaning?
can't you be swaning?
can't they be swaning? 	can't I have swaned?
can't you have swaned?
can't she have swaned?
can't we have swaned?
can't you have swaned?
can't they have swaned? 	can't I have been swaning?
can't you have been swaning?
can't she have been swaning?
can't we have been swaning?
can't you have been swaning?
can't they have been swaning?