Felicity conditions

Utterance: “I name this ship Endeavour.” Context: Said by a captain during a launch ceremony.

Utterance: “Could you explain that again?” Context: Student asking a teacher politely in class.

Utterance: “I promise I will help you tomorrow.” Context: The speaker has no intention to help.

Utterance: “I resign from my job.” Context: Said to a friend over coffee, not to the boss.

Utterance: “I bet you $50 it will rain tomorrow.” Context: Both parties agree and shake hands.

Utterance: “You are under arrest.” Context: Said by a stranger on the street.

Utterance: “Close the window, please.” Context: Addressed to a cat.

Utterance: “Can you lend me a pen?” Context: Said to someone clearly holding a pen.

Utterance: “I apologize for being late.” Context: The speaker feels no regret.

Utterance: “I now declare this building open.” Context: Said by a janitor during a coffee break.