English verb conjugation
OUGHT TO PRECLEAN

Regular verb: preclean - precleaned - precleaned

Affirmation

Simple form	V-ing form
I ought to preclean you ought to preclean he ought to preclean we ought to preclean you ought to preclean they ought to preclean	I ought to be precleaning you ought to be precleaning he ought to be precleaning we ought to be precleaning you ought to be precleaning they ought to be precleaning
Perfect	V-ing perfect
I ought to have precleaned you ought to have precleaned he ought to have precleaned we ought to have precleaned you ought to have precleaned they ought to have precleaned	I ought to have been precleaning you ought to have been precleaning he ought to have been precleaning we ought to have been precleaning you ought to have been precleaning they ought to have been precleaning

Negation

Simple form	V-ing form
I oughtn't to preclean you oughtn't to preclean he oughtn't to preclean we oughtn't to preclean you oughtn't to preclean they oughtn't to preclean	I oughtn't to be precleaning you oughtn't to be precleaning he oughtn't to be precleaning we oughtn't to be precleaning you oughtn't to be precleaning they oughtn't to be precleaning
Perfect	V-ing perfect
I oughtn't to have precleaned you oughtn't to have precleaned he oughtn't to have precleaned we oughtn't to have precleaned you oughtn't to have precleaned they oughtn't to have precleaned	I oughtn't to have been precleaning you oughtn't to have been precleaning he oughtn't to have been precleaning we oughtn't to have been precleaning you oughtn't to have been precleaning they oughtn't to have been precleaning

Interrogative form

Simple form	V-ing form
ought to I preclean? ought to you preclean? ought to he preclean? ought to we preclean? ought to you preclean? ought to they preclean?	ought to I be precleaning? ought to you be precleaning? ought to he be precleaning? ought to we be precleaning? ought to you be precleaning? ought to they be precleaning?
Perfect	V-ing perfect
ought to I have precleaned? ought to you have precleaned? ought to he have precleaned? ought to we have precleaned? ought to you have precleaned? ought to they have precleaned?	ought to I have been precleaning? ought to you have been precleaning? ought to he have been precleaning? ought to we have been precleaning? ought to you have been precleaning? ought to they have been precleaning?

Interro-negative form

Simple form	V-ing form
oughtn't I to preclean? oughtn't you to preclean? oughtn't he to preclean? oughtn't we to preclean? oughtn't you to preclean? oughtn't they to preclean?	oughtn't I to be precleaning? oughtn't you to be precleaning? oughtn't he to be precleaning? oughtn't we to be precleaning? oughtn't you to be precleaning? oughtn't they to be precleaning?
Perfect	V-ing perfect
oughtn't I to have precleaned? oughtn't you to have precleaned? oughtn't he to have precleaned? oughtn't we to have precleaned? oughtn't you to have precleaned? oughtn't they to have precleaned?	oughtn't I to have been precleaning? oughtn't you to have been precleaning? oughtn't he to have been precleaning? oughtn't we to have been precleaning? oughtn't you to have been precleaning? oughtn't they to have been precleaning?