* "Is" is the third person singular present tense form of "to be".
* Example: "She *is* happy."
* "Am" is the first person singular present tense form of "to be".
* Example: "I *am* hungry."
"To be" is a special verb because it can act as:
* A linking verb: It connects a subject to a noun or adjective that describes the subject.
* Example: "The sky *is* blue." (linking "sky" to the adjective "blue")
* An auxiliary verb: It helps form other verb tenses like the continuous tenses.
* Example: "She *is* walking." (helping "walking" to be in the present continuous tense)
Let me know if you'd like more information about the verb "to be"!