ought to tube
Regular verb: tube - tubed- tubed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to tube
you ought to tube
he ought to tube
we ought to tube
you ought to tube
they ought to tube 	I ought to be tubing
you ought to be tubing
he ought to be tubing
we ought to be tubing
you ought to be tubing
they ought to be tubing	I ought to have tubed
you ought to have tubed
he ought to have tubed
we ought to have tubed
you ought to have tubed
they ought to have tubed	I ought to have been tubing
you ought to have been tubing
he ought to have been tubing
we ought to have been tubing
you ought to have been tubing
they ought to have been tubing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to tube
you ought not to tube
he ought not to tube
we ought not to tube
you ought not to tube
they ought not to tube 	I ought not to tubing
you ought not to tubing
he ought not to tubing
we ought not to tubing
you ought not to tubing
they ought not to tubing	I ought not to have tubed
you ought not to have tubed
he ought not to have tubed
we ought not to have tubed
you ought not to have tubed
they ought not to have tubed	I ought not to have been tubing
you ought not to have been tubing
he ought not to have been tubing
we ought not to have been tubing
you ought not to have been tubing
they ought not to have been tubing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I tube?
ought to you tube?
ought to he tube?
ought to we tube?
ought to you tube?
ought to they tube? 	ought to I be tubing?
ought to you be tubing?
ought to he be tubing?
ought to we be tubing?
ought to you be tubing?
ought to they be tubing? 	ought to I have tubed?
ought to you have tubed?
ought to he have tubed?
ought to we have tubed?
ought to you have tubed?
ought to they have tubed? 	ought to I have been tubing?
ought to you have been tubing?
ought to he have been tubing?
ought to we have been tubing?
ought to you have been tubing?
ought to they have been tubing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to tube?
ought you not to tube?
ought he not to tube?
ought we not to tube?
ought you not to tube?
ought they not to tube? 	ought I not to be tubing?
ought you not to be tubing?
ought he not to be tubing?
ought we not to be tubing?
ought you not to be tubing?
ought they not to be tubing? 	ought I not to have tubed?
ought you not to have tubed?
ought he not to have tubed?
ought we not to have tubed?
ought you not to have tubed?
ought they not to have tubed? 	ought I not to have been tubing?
ought you not to have been tubing?
ought he not to have been tubing?
ought we not to have been tubing?
ought you not to have been tubing?
ought they not to have been tubing?