How to say "Be" in Japanese

When translating "be" into Japanese, you must choose carefully between 感動する and がっかりする. In Japanese, 感動する (かんどうする (kandōsuru)) is typically associated with "to be moved, to be impressed, to be touched" (Syllabus Level: N4) and represents Expresses being deeply moved emotionally by something beautiful, powerful, or touching. Often takes 「に. On the other hand, がっかりする (がっかりする (gakkari suru)) maps to "to be disappointed, to feel let down" (Syllabus Level: N4) and represents An onomatopoeic verb describing the feeling of disappointment or sadness when expectations are not met. Often used with a particle like に. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!