Rule 1: Thou shalt use the correct article. "The" is for singular nouns. "A" is for singular nouns starting with a vowel sound. Example: "The cat" but "A cat" (because cat starts with a vowel sound).
Rule 2: Thou shalt not use the wrong verb conjugation. "To be" is a verb. Don't use it as a noun. "To be" is not "to bee".
Learn more about verb conjugations.