To use "am," "is," or "are" in a sentence, you need to consider the subject of the sentence and choose the appropriate form of the verb to match the subject. Here are some examples:
- I am happy.
- She is running.
- They are playing outside.
- He is a doctor.
- We are going to the park.
- The book is on the table.
- The cats are sleeping.
- You are my best friend.
- It is raining.
- The flowers are blooming.
In these examples, "am" is used with the pronoun "I," "is" is used with singular nouns or pronouns like "she," "he," and "it," and "are" is used with plural nouns or pronouns like "they," "we," and "cats." Remember to choose the correct form based on the subject of the sentence.