How to say "Be" in Japanese

When translating "be" into Japanese, you must choose carefully between 注意する and 気をつける. In Japanese, 注意する (ちゅういする (chūi suru)) is typically associated with "to be careful; to pay attention; to warn" (Syllabus Level: N4) and represents A versatile verb often used for 'being careful about something'. On the other hand, 気をつける (きをつける (ki o tsukeru)) maps to "to be careful, to pay attention, to look out" (Syllabus Level: N4) and represents Often used to warn someone or remind them to be cautious. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!