The Japanese verb "itasu" (致す) is a formal and humble way to express the action of doing or performing. It is often used in polite conversation, particularly in business or formal settings, to show respect to the listener. "Itasu" is the humble form of the verb "suru" (する), which means "to do." In addition to its use in conversation, "itasu" can also appear in written Japanese, especially in official documents or letters. This verb is commonly used when referring to actions taken on behalf of others or when expressing gratitude, making it an important part of the keigo (敬語) system, which encompasses honorific language in Japanese.