May not be的意思

"May not be" is a modal phrase in English that expresses possibility or probability. It is formed by the modal verb "may" and the negative form of the verb "be." Here are a few ways "may not be" can be used:

1. Possibility: "May not be" can be used to express a possibility that something is not true or not the case.

   • Example: "The meeting may not be canceled; we're still waiting for confirmation."

2. Permission: In some contexts, "may not be" can be used to give or ask for permission not to do something.

   • Example: "You may not be late for the appointment."

3. Contradiction: It can also be used to contradict a previous statement or assumption.

   • Example: "I thought you were at home, but you may not be."

4. Doubt: To express doubt or uncertainty about the truth of a statement.

   • Example: "He said he's coming, but he may not be."

5. Advice or Warning: To advise or warn someone not to do something.

   • Example: "You'd better not go out in this weather; you may not be safe."

It's important to note that "may not be" is different from "might not be," which is the past tense form of "may not be." The two phrases can be used interchangeably in many contexts, but "might not be" suggests a slightly lower level of possibility or probability.