English verb conjugation
OUGHT TO BOIL

Regular verb: boil - boiled - boiled

Affirmation

Simple form	V-ing form
I ought to boil you ought to boil he ought to boil we ought to boil you ought to boil they ought to boil	I ought to be boiling you ought to be boiling he ought to be boiling we ought to be boiling you ought to be boiling they ought to be boiling
Perfect	V-ing perfect
I ought to have boiled you ought to have boiled he ought to have boiled we ought to have boiled you ought to have boiled they ought to have boiled	I ought to have been boiling you ought to have been boiling he ought to have been boiling we ought to have been boiling you ought to have been boiling they ought to have been boiling

Negation

Simple form	V-ing form
I ought not to boil you ought not to boil he ought not to boil we ought not to boil you ought not to boil they ought not to boil	I ought not to boiling you ought not to boiling he ought not to boiling we ought not to boiling you ought not to boiling they ought not to boiling
Perfect	V-ing perfect
I ought not to have boiled you ought not to have boiled he ought not to have boiled we ought not to have boiled you ought not to have boiled they ought not to have boiled	I ought not to have been boiling you ought not to have been boiling he ought not to have been boiling we ought not to have been boiling you ought not to have been boiling they ought not to have been boiling

Interrogative form

Simple form	V-ing form
ought to I boil? ought to you boil? ought to he boil? ought to we boil? ought to you boil? ought to they boil?	ought to I be boiling? ought to you be boiling? ought to he be boiling? ought to we be boiling? ought to you be boiling? ought to they be boiling?
Perfect	V-ing perfect
ought to I have boiled? ought to you have boiled? ought to he have boiled? ought to we have boiled? ought to you have boiled? ought to they have boiled?	ought to I have been boiling? ought to you have been boiling? ought to he have been boiling? ought to we have been boiling? ought to you have been boiling? ought to they have been boiling?

Interro-negative form

Simple form	V-ing form
ought I not to boil? ought you not to boil? ought he not to boil? ought we not to boil? ought you not to boil? ought they not to boil?	ought I not to be boiling? ought you not to be boiling? ought he not to be boiling? ought we not to be boiling? ought you not to be boiling? ought they not to be boiling?
Perfect	V-ing perfect
ought I not to have boiled? ought you not to have boiled? ought he not to have boiled? ought we not to have boiled? ought you not to have boiled? ought they not to have boiled?	ought I not to have been boiling? ought you not to have been boiling? ought he not to have been boiling? ought we not to have been boiling? ought you not to have been boiling? ought they not to have been boiling?