can sibilate
Regular verb: sibilate - sibilated- sibilated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sibilate
you can sibilate
he can sibilate
we can sibilate
you can sibilate
they can sibilate 	I can be sibilating
you can be sibilating
he can be sibilating
we can be sibilating
you can be sibilating
they can be sibilating	I can have sibilated
you can have sibilated
he can have sibilated
we can have sibilated
you can have sibilated
they can have sibilated	I can have been sibilating
you can have been sibilating
he can have been sibilating
we can have been sibilating
you can have been sibilating
they can have been sibilating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot sibilate
you cannot sibilate
he cannot sibilate
we cannot sibilate
you cannot sibilate
they cannot sibilate 	I cannot be sibilating
you cannot be sibilating
he cannot be sibilating
we cannot be sibilating
you cannot be sibilating
they cannot be sibilating	I cannot have sibilated
you cannot have sibilated
he cannot have sibilated
we cannot have sibilated
you cannot have sibilated
they cannot have sibilated	I cannot have been sibilating
you cannot have been sibilating
he cannot have been sibilating
we cannot have been sibilating
you cannot have been sibilating
they cannot have been sibilating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sibilate?
can you sibilate?
can he sibilate?
can we sibilate?
can you sibilate?
can they sibilate? 	can I be sibilating?
can you be sibilating?
can he be sibilating?
can we be sibilating?
can you be sibilating?
can they be sibilating? 	can I have sibilated?
can you have sibilated?
can he have sibilated?
can we have sibilated?
can you have sibilated?
can they have sibilated? 	can I have been sibilating?
can you have been sibilating?
can he have been sibilating?
can we have been sibilating?
can you have been sibilating?
can they have been sibilating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not sibilate?
can you not sibilate?
can he not sibilate?
can we not sibilate?
can you not sibilate?
can they not sibilate? 	can I not be sibilating?
can you not be sibilating?
can he not be sibilating?
can we not be sibilating?
can you not be sibilating?
can they not be sibilating? 	can I not have sibilated?
can you not have sibilated?
can he not have sibilated?
can we not have sibilated?
can you not have sibilated?
can they not have sibilated? 	can I not have been sibilating?
can you not have been sibilating?
can he not have been sibilating?
can we not have been sibilating?
can you not have been sibilating?
can they not have been sibilating?