can boo
Regular verb: boo - booed- booed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can boo
you can boo
she can boo
we can boo
you can boo
they can boo 	I can be booing
you can be booing
she can be booing
we can be booing
you can be booing
they can be booing	I can have booed
you can have booed
she can have booed
we can have booed
you can have booed
they can have booed	I can have been booing
you can have been booing
she can have been booing
we can have been booing
you can have been booing
they can have been booing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot boo
you cannot boo
she cannot boo
we cannot boo
you cannot boo
they cannot boo 	I cannot be booing
you cannot be booing
she cannot be booing
we cannot be booing
you cannot be booing
they cannot be booing	I cannot have booed
you cannot have booed
she cannot have booed
we cannot have booed
you cannot have booed
they cannot have booed	I cannot have been booing
you cannot have been booing
she cannot have been booing
we cannot have been booing
you cannot have been booing
they cannot have been booing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I boo?
can you boo?
can she boo?
can we boo?
can you boo?
can they boo? 	can I be booing?
can you be booing?
can she be booing?
can we be booing?
can you be booing?
can they be booing? 	can I have booed?
can you have booed?
can she have booed?
can we have booed?
can you have booed?
can they have booed? 	can I have been booing?
can you have been booing?
can she have been booing?
can we have been booing?
can you have been booing?
can they have been booing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not boo?
can you not boo?
can she not boo?
can we not boo?
can you not boo?
can they not boo? 	can I not be booing?
can you not be booing?
can she not be booing?
can we not be booing?
can you not be booing?
can they not be booing? 	can I not have booed?
can you not have booed?
can she not have booed?
can we not have booed?
can you not have booed?
can they not have booed? 	can I not have been booing?
can you not have been booing?
can she not have been booing?
can we not have been booing?
can you not have been booing?
can they not have been booing?