Examples Ought to

OUGHT TO

The verb ought to only exists in simple present and present perfect forms
  Forms of ought to

All persons	Present	Present perfect
Affirmative	ought to	ought to have
Negative	ought not to,  oughtn't to	ought not to have,  oughtn't to have

Examples:
  It's raining hard, the children ought to come indoors.
  I didn't know you were married ! You ought to have told me !
  This pullover's got holes in it, I ought to get a new one.
 That's awful ! You really oughtn't to have done that, you know !