"ought to attend" is a correct and commonly used phrase in written English.
It means that someone should or is expected to attend an event or activity. Example: Students ought to attend all of their classes in order to do well in school.
Conservation groups also ought to attend more to the ecological disaster called biofuels.
Shortly before his discharge, he wrote to Ansel Adams asking for advice about what photography school he ought to attend.
Though they reach radically different conclusions on the process that ought to attend the present proceeding, the parties begin on common ground.
One well-intentioned old gentleman caused a flutter by warning us that anyone who condemned a native to death jolly well ought to attend to his execution.
In an online post on her website she wrote: "Everyone told me that I still ought to attend, that a walk down the red carpet would still be 'good for my career'.
(There also seems to be much less nonsense surrounding GDC, so maybe we ought to attend next year).
On a recent afternoon, Abzug was sitting in her crowded midtown office and was exercised over suggestions that Hillary Clinton ought not to attend the Beijing conference, because the Administration was at odds with China over human-rights issues.
After his 80th birthday, he said, "I don't feel quite as old as I ought to". He attended a birthday celebration in the Olivier Theater at the National Theater.
Mr. Hoyer rejected the suggestion of critics that members ought to be attending only to domestic affairs right now.
It is the proper function of the state to prevent the dealers from ganging up on the customers: "Consumption is the sole end and purpose of all production; and the interest of the producer ought to be attended to only so far as it may be necessary for promoting that of the consumer".
Because of that, it may lend itself more readily to an internationalist, less inward-looking orientation: any population, regardless of nationality or geographic location, has health interests that ought to be attended to and advanced (Wikler & Brock 2007).
