can dog
Regular verb: dog - dogged- dogged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can dog
you can dog
she can dog
we can dog
you can dog
they can dog 	I can be dogging
you can be dogging
she can be dogging
we can be dogging
you can be dogging
they can be dogging	I can have dogged
you can have dogged
she can have dogged
we can have dogged
you can have dogged
they can have dogged	I can have been dogging
you can have been dogging
she can have been dogging
we can have been dogging
you can have been dogging
they can have been dogging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't dog
you can't dog
she can't dog
we can't dog
you can't dog
they can't dog 	I can't be dogging
you can't be dogging
she can't be dogging
we can't be dogging
you can't be dogging
they can't be dogging	I can't have dogged
you can't have dogged
she can't have dogged
we can't have dogged
you can't have dogged
they can't have dogged	I can't have been dogging
you can't have been dogging
she can't have been dogging
we can't have been dogging
you can't have been dogging
they can't have been dogging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I dog?
can you dog?
can she dog?
can we dog?
can you dog?
can they dog? 	can I be dogging?
can you be dogging?
can she be dogging?
can we be dogging?
can you be dogging?
can they be dogging? 	can I have dogged?
can you have dogged?
can she have dogged?
can we have dogged?
can you have dogged?
can they have dogged? 	can I have been dogging?
can you have been dogging?
can she have been dogging?
can we have been dogging?
can you have been dogging?
can they have been dogging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I dog?
can't you dog?
can't she dog?
can't we dog?
can't you dog?
can't they dog? 	can't I be dogging?
can't you be dogging?
can't she be dogging?
can't we be dogging?
can't you be dogging?
can't they be dogging? 	can't I have dogged?
can't you have dogged?
can't she have dogged?
can't we have dogged?
can't you have dogged?
can't they have dogged? 	can't I have been dogging?
can't you have been dogging?
can't she have been dogging?
can't we have been dogging?
can't you have been dogging?
can't they have been dogging?