can say
Irregular verb: say - said- said

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can say
you can say
he can say
we can say
you can say
they can say 	I can be saying
you can be saying
he can be saying
we can be saying
you can be saying
they can be saying	I can have said
you can have said
he can have said
we can have said
you can have said
they can have said	I can have been saying
you can have been saying
he can have been saying
we can have been saying
you can have been saying
they can have been saying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't say
you can't say
he can't say
we can't say
you can't say
they can't say 	I can't be saying
you can't be saying
he can't be saying
we can't be saying
you can't be saying
they can't be saying	I can't have said
you can't have said
he can't have said
we can't have said
you can't have said
they can't have said	I can't have been saying
you can't have been saying
he can't have been saying
we can't have been saying
you can't have been saying
they can't have been saying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I say?
can you say?
can he say?
can we say?
can you say?
can they say? 	can I be saying?
can you be saying?
can he be saying?
can we be saying?
can you be saying?
can they be saying? 	can I have said?
can you have said?
can he have said?
can we have said?
can you have said?
can they have said? 	can I have been saying?
can you have been saying?
can he have been saying?
can we have been saying?
can you have been saying?
can they have been saying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I say?
can't you say?
can't he say?
can't we say?
can't you say?
can't they say? 	can't I be saying?
can't you be saying?
can't he be saying?
can't we be saying?
can't you be saying?
can't they be saying? 	can't I have said?
can't you have said?
can't he have said?
can't we have said?
can't you have said?
can't they have said? 	can't I have been saying?
can't you have been saying?
can't he have been saying?
can't we have been saying?
can't you have been saying?
can't they have been saying?