ought to blackmail
Regular verb: blackmail - blackmailed- blackmailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to blackmail
you ought to blackmail
she ought to blackmail
we ought to blackmail
you ought to blackmail
they ought to blackmail 	I ought to be blackmailing
you ought to be blackmailing
she ought to be blackmailing
we ought to be blackmailing
you ought to be blackmailing
they ought to be blackmailing	I ought to have blackmailed
you ought to have blackmailed
she ought to have blackmailed
we ought to have blackmailed
you ought to have blackmailed
they ought to have blackmailed	I ought to have been blackmailing
you ought to have been blackmailing
she ought to have been blackmailing
we ought to have been blackmailing
you ought to have been blackmailing
they ought to have been blackmailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to blackmail
you ought not to blackmail
she ought not to blackmail
we ought not to blackmail
you ought not to blackmail
they ought not to blackmail 	I ought not to blackmailing
you ought not to blackmailing
she ought not to blackmailing
we ought not to blackmailing
you ought not to blackmailing
they ought not to blackmailing	I ought not to have blackmailed
you ought not to have blackmailed
she ought not to have blackmailed
we ought not to have blackmailed
you ought not to have blackmailed
they ought not to have blackmailed	I ought not to have been blackmailing
you ought not to have been blackmailing
she ought not to have been blackmailing
we ought not to have been blackmailing
you ought not to have been blackmailing
they ought not to have been blackmailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I blackmail?
ought to you blackmail?
ought to she blackmail?
ought to we blackmail?
ought to you blackmail?
ought to they blackmail? 	ought to I be blackmailing?
ought to you be blackmailing?
ought to she be blackmailing?
ought to we be blackmailing?
ought to you be blackmailing?
ought to they be blackmailing? 	ought to I have blackmailed?
ought to you have blackmailed?
ought to she have blackmailed?
ought to we have blackmailed?
ought to you have blackmailed?
ought to they have blackmailed? 	ought to I have been blackmailing?
ought to you have been blackmailing?
ought to she have been blackmailing?
ought to we have been blackmailing?
ought to you have been blackmailing?
ought to they have been blackmailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to blackmail?
ought you not to blackmail?
ought she not to blackmail?
ought we not to blackmail?
ought you not to blackmail?
ought they not to blackmail? 	ought I not to be blackmailing?
ought you not to be blackmailing?
ought she not to be blackmailing?
ought we not to be blackmailing?
ought you not to be blackmailing?
ought they not to be blackmailing? 	ought I not to have blackmailed?
ought you not to have blackmailed?
ought she not to have blackmailed?
ought we not to have blackmailed?
ought you not to have blackmailed?
ought they not to have blackmailed? 	ought I not to have been blackmailing?
ought you not to have been blackmailing?
ought she not to have been blackmailing?
ought we not to have been blackmailing?
ought you not to have been blackmailing?
ought they not to have been blackmailing?