Can be意思

"Can be" is a modal auxiliary verb phrase that is used to express ability, possibility, or permission. It is formed by combining the modal verb "can" with the verb "be" in the infinitive form. Here are some examples of how "can be" is used in different contexts:

1. Ability:

   • "She can be very helpful when she wants to."
   • "I can't be there before 5 p.m."

2. Possibility:

   • "The weather can be unpredictable in the mountains."
   • "This situation can be resolved if we work together."

3. Permission:

   • "You can be seated now."
   • "We can't be late for the meeting."

In each of these examples, "can be" serves a different purpose depending on the context of the sentence.