can ring
Irregular verb: ring - rang- rung

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can ring
you can ring
she can ring
we can ring
you can ring
they can ring 	I can be ringing
you can be ringing
she can be ringing
we can be ringing
you can be ringing
they can be ringing	I can have rung
you can have rung
she can have rung
we can have rung
you can have rung
they can have rung	I can have been ringing
you can have been ringing
she can have been ringing
we can have been ringing
you can have been ringing
they can have been ringing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't ring
you can't ring
she can't ring
we can't ring
you can't ring
they can't ring 	I can't be ringing
you can't be ringing
she can't be ringing
we can't be ringing
you can't be ringing
they can't be ringing	I can't have rung
you can't have rung
she can't have rung
we can't have rung
you can't have rung
they can't have rung	I can't have been ringing
you can't have been ringing
she can't have been ringing
we can't have been ringing
you can't have been ringing
they can't have been ringing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I ring?
can you ring?
can she ring?
can we ring?
can you ring?
can they ring? 	can I be ringing?
can you be ringing?
can she be ringing?
can we be ringing?
can you be ringing?
can they be ringing? 	can I have rung?
can you have rung?
can she have rung?
can we have rung?
can you have rung?
can they have rung? 	can I have been ringing?
can you have been ringing?
can she have been ringing?
can we have been ringing?
can you have been ringing?
can they have been ringing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I ring?
can't you ring?
can't she ring?
can't we ring?
can't you ring?
can't they ring? 	can't I be ringing?
can't you be ringing?
can't she be ringing?
can't we be ringing?
can't you be ringing?
can't they be ringing? 	can't I have rung?
can't you have rung?
can't she have rung?
can't we have rung?
can't you have rung?
can't they have rung? 	can't I have been ringing?
can't you have been ringing?
can't she have been ringing?
can't we have been ringing?
can't you have been ringing?
can't they have been ringing?