Origin of ought1
Both positive and negative forms of ought are almost always followed by the infinitive form: We ought to go now. You ought not to worry about it. Occasionally, to is omitted after the negative construction: Congress ought not adjourn without considering this bill.
Origin of aught1
Origin of aught2
Examples from the Web for ought
When companies do bad things they ought to be held accountable for them.Why Do ‘Progressives’ Want to Ban Uber and AirBnB?|Adam Thierer, Christopher Koopman|December 30, 2014|DAILY BEAST
We ought to seek Chinese cooperation in a response to this North Korean act of aggression.
Then when we arrive at his flat in Shepherd's Bush following the escape, perhaps there ought to be remnants of the ladder.Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days|David Freeman|December 13, 2014|DAILY BEAST
The officers explained that those Sikhs had been lynched to death and that Singh ought to anticipate the same fate for himself.As 30-Year Anniversary of Mass Killings in India Arrives, Sikhs Find Safety in USA|Simran Jeet Singh|October 31, 2014|DAILY BEAST
“Novelist good for nothing else,” said Samuel Beckett, and that ought to be taken as a compliment.Nobel Prize Winner Modiano’s Magical Musical Prose About Paris|Pierre Assouline|October 14, 2014|DAILY BEAST
We ought to take quite a place in the county, and challenge other schools for matches.For the School Colours|Angela Brazil
If there is only one woman in the nation who claims the right to vote, she ought to have it.An English Grammar|W. M. Baskervill and J. W. Sewell
I know how busy you are, and I ought not to have asked you to come.Theft|Jack London
You'd think he ought to keep quiet about your doin's, wouldn't ye, now?Fair Harbor|Joseph Crosby Lincoln
They ought, therefore, to be brought into the account on this occasion.
verb (foll by to; takes an infinitive or implied infinitive)
Word Origin for ought
Word Origin for ought
ought used with a negative or in conditional or interrogative sentences or clauses
Word Origin for aught
Old English ahte "owned, possessed," past tense of agan "to own, possess, owe" (see owe). As a past tense of owe, it shared in that word's evolution and meant at times in Middle English "possessed" and "under obligation to pay." It has been detached from owe since 17c., though he aught me ten pounds is recorded as active in East Anglian dialect from c.1825. As an auxiliary verb expressing duty or obligation (late 12c., the main modern use), it represents the past subjunctive.
"something," Old English awiht "aught, anything, something," literally "e'er a whit," from Proto-Germanic *aiwi "ever" (from PIE *aiw- "vital force, life, long life, eternity;" see eon) + *wihti "thing, anything whatever" (see wight). In Shakespeare, Milton and Pope, aught and ought occur indiscriminately.