Sentence examples for all of them do from inspiring English sources

The phrase "all of them do" is grammatically correct and can be used in written English.
It is typically used as a response or statement to indicate that a certain action or behavior applies to all people or things being discussed. Example: "Some people prefer to exercise in the morning, while others prefer to exercise in the evening. However, all of them do agree that regular exercise is important for maintaining a healthy lifestyle."