ought to drain
Regular verb: drain - drained- drained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to drain
you ought to drain
she ought to drain
we ought to drain
you ought to drain
they ought to drain 	I ought to be draining
you ought to be draining
she ought to be draining
we ought to be draining
you ought to be draining
they ought to be draining	I ought to have drained
you ought to have drained
she ought to have drained
we ought to have drained
you ought to have drained
they ought to have drained	I ought to have been draining
you ought to have been draining
she ought to have been draining
we ought to have been draining
you ought to have been draining
they ought to have been draining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to drain
you oughtn't to drain
she oughtn't to drain
we oughtn't to drain
you oughtn't to drain
they oughtn't to drain 	I oughtn't to be draining
you oughtn't to be draining
she oughtn't to be draining
we oughtn't to be draining
you oughtn't to be draining
they oughtn't to be draining	I oughtn't to have drained
you oughtn't to have drained
she oughtn't to have drained
we oughtn't to have drained
you oughtn't to have drained
they oughtn't to have drained	I oughtn't to have been draining
you oughtn't to have been draining
she oughtn't to have been draining
we oughtn't to have been draining
you oughtn't to have been draining
they oughtn't to have been draining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I drain?
ought to you drain?
ought to she drain?
ought to we drain?
ought to you drain?
ought to they drain? 	ought to I be draining?
ought to you be draining?
ought to she be draining?
ought to we be draining?
ought to you be draining?
ought to they be draining? 	ought to I have drained?
ought to you have drained?
ought to she have drained?
ought to we have drained?
ought to you have drained?
ought to they have drained? 	ought to I have been draining?
ought to you have been draining?
ought to she have been draining?
ought to we have been draining?
ought to you have been draining?
ought to they have been draining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to drain?
oughtn't you to drain?
oughtn't she to drain?
oughtn't we to drain?
oughtn't you to drain?
oughtn't they to drain? 	oughtn't I to be draining?
oughtn't you to be draining?
oughtn't she to be draining?
oughtn't we to be draining?
oughtn't you to be draining?
oughtn't they to be draining? 	oughtn't I to have drained?
oughtn't you to have drained?
oughtn't she to have drained?
oughtn't we to have drained?
oughtn't you to have drained?
oughtn't they to have drained? 	oughtn't I to have been draining?
oughtn't you to have been draining?
oughtn't she to have been draining?
oughtn't we to have been draining?
oughtn't you to have been draining?
oughtn't they to have been draining?