can suntan
Regular verb: suntan - suntaned- suntaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can suntan
you can suntan
he can suntan
we can suntan
you can suntan
they can suntan 	I can be suntaning
you can be suntaning
he can be suntaning
we can be suntaning
you can be suntaning
they can be suntaning	I can have suntaned
you can have suntaned
he can have suntaned
we can have suntaned
you can have suntaned
they can have suntaned	I can have been suntaning
you can have been suntaning
he can have been suntaning
we can have been suntaning
you can have been suntaning
they can have been suntaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot suntan
you cannot suntan
he cannot suntan
we cannot suntan
you cannot suntan
they cannot suntan 	I cannot be suntaning
you cannot be suntaning
he cannot be suntaning
we cannot be suntaning
you cannot be suntaning
they cannot be suntaning	I cannot have suntaned
you cannot have suntaned
he cannot have suntaned
we cannot have suntaned
you cannot have suntaned
they cannot have suntaned	I cannot have been suntaning
you cannot have been suntaning
he cannot have been suntaning
we cannot have been suntaning
you cannot have been suntaning
they cannot have been suntaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I suntan?
can you suntan?
can he suntan?
can we suntan?
can you suntan?
can they suntan? 	can I be suntaning?
can you be suntaning?
can he be suntaning?
can we be suntaning?
can you be suntaning?
can they be suntaning? 	can I have suntaned?
can you have suntaned?
can he have suntaned?
can we have suntaned?
can you have suntaned?
can they have suntaned? 	can I have been suntaning?
can you have been suntaning?
can he have been suntaning?
can we have been suntaning?
can you have been suntaning?
can they have been suntaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not suntan?
can you not suntan?
can he not suntan?
can we not suntan?
can you not suntan?
can they not suntan? 	can I not be suntaning?
can you not be suntaning?
can he not be suntaning?
can we not be suntaning?
can you not be suntaning?
can they not be suntaning? 	can I not have suntaned?
can you not have suntaned?
can he not have suntaned?
can we not have suntaned?
can you not have suntaned?
can they not have suntaned? 	can I not have been suntaning?
can you not have been suntaning?
can he not have been suntaning?
can we not have been suntaning?
can you not have been suntaning?
can they not have been suntaning?