He obliged his colleague by covering her shift when she fell ill.

I felt obliged to speak up when I saw the safety hazard.

The obligators failed to meet the deadline, causing the entire project to be delayed.

The obligant agreed to assume responsibility for the loan, promising to pay if the borrower defaulted.

Because the bacterium is obligately intracellular, it cannot be grown outside living host cells.

The obligator signed the contract without fully explaining the scope of the duties imposed on the other party.

Despite the personal cost, his strong obligement to the community drove him to volunteer every weekend.

The committee reviewed the obligational clauses in the contract before giving approval.

He carefully listed all his obligements on the agreement before signing, knowing any omission might cause legal complications.

As an obligable member of the committee, she immediately fulfilled her reporting duties.