can suction
Regular verb: suction - suctioned- suctioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can suction
you can suction
she can suction
we can suction
you can suction
they can suction 	I can be suctioning
you can be suctioning
she can be suctioning
we can be suctioning
you can be suctioning
they can be suctioning	I can have suctioned
you can have suctioned
she can have suctioned
we can have suctioned
you can have suctioned
they can have suctioned	I can have been suctioning
you can have been suctioning
she can have been suctioning
we can have been suctioning
you can have been suctioning
they can have been suctioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't suction
you can't suction
she can't suction
we can't suction
you can't suction
they can't suction 	I can't be suctioning
you can't be suctioning
she can't be suctioning
we can't be suctioning
you can't be suctioning
they can't be suctioning	I can't have suctioned
you can't have suctioned
she can't have suctioned
we can't have suctioned
you can't have suctioned
they can't have suctioned	I can't have been suctioning
you can't have been suctioning
she can't have been suctioning
we can't have been suctioning
you can't have been suctioning
they can't have been suctioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I suction?
can you suction?
can she suction?
can we suction?
can you suction?
can they suction? 	can I be suctioning?
can you be suctioning?
can she be suctioning?
can we be suctioning?
can you be suctioning?
can they be suctioning? 	can I have suctioned?
can you have suctioned?
can she have suctioned?
can we have suctioned?
can you have suctioned?
can they have suctioned? 	can I have been suctioning?
can you have been suctioning?
can she have been suctioning?
can we have been suctioning?
can you have been suctioning?
can they have been suctioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I suction?
can't you suction?
can't she suction?
can't we suction?
can't you suction?
can't they suction? 	can't I be suctioning?
can't you be suctioning?
can't she be suctioning?
can't we be suctioning?
can't you be suctioning?
can't they be suctioning? 	can't I have suctioned?
can't you have suctioned?
can't she have suctioned?
can't we have suctioned?
can't you have suctioned?
can't they have suctioned? 	can't I have been suctioning?
can't you have been suctioning?
can't she have been suctioning?
can't we have been suctioning?
can't you have been suctioning?
can't they have been suctioning?