can punctuate
Regular verb: punctuate - punctuated- punctuated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can punctuate
you can punctuate
she can punctuate
we can punctuate
you can punctuate
they can punctuate 	I can be punctuating
you can be punctuating
she can be punctuating
we can be punctuating
you can be punctuating
they can be punctuating	I can have punctuated
you can have punctuated
she can have punctuated
we can have punctuated
you can have punctuated
they can have punctuated	I can have been punctuating
you can have been punctuating
she can have been punctuating
we can have been punctuating
you can have been punctuating
they can have been punctuating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't punctuate
you can't punctuate
she can't punctuate
we can't punctuate
you can't punctuate
they can't punctuate 	I can't be punctuating
you can't be punctuating
she can't be punctuating
we can't be punctuating
you can't be punctuating
they can't be punctuating	I can't have punctuated
you can't have punctuated
she can't have punctuated
we can't have punctuated
you can't have punctuated
they can't have punctuated	I can't have been punctuating
you can't have been punctuating
she can't have been punctuating
we can't have been punctuating
you can't have been punctuating
they can't have been punctuating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I punctuate?
can you punctuate?
can she punctuate?
can we punctuate?
can you punctuate?
can they punctuate? 	can I be punctuating?
can you be punctuating?
can she be punctuating?
can we be punctuating?
can you be punctuating?
can they be punctuating? 	can I have punctuated?
can you have punctuated?
can she have punctuated?
can we have punctuated?
can you have punctuated?
can they have punctuated? 	can I have been punctuating?
can you have been punctuating?
can she have been punctuating?
can we have been punctuating?
can you have been punctuating?
can they have been punctuating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I punctuate?
can't you punctuate?
can't she punctuate?
can't we punctuate?
can't you punctuate?
can't they punctuate? 	can't I be punctuating?
can't you be punctuating?
can't she be punctuating?
can't we be punctuating?
can't you be punctuating?
can't they be punctuating? 	can't I have punctuated?
can't you have punctuated?
can't she have punctuated?
can't we have punctuated?
can't you have punctuated?
can't they have punctuated? 	can't I have been punctuating?
can't you have been punctuating?
can't she have been punctuating?
can't we have been punctuating?
can't you have been punctuating?
can't they have been punctuating?