In strict usage adverbs of degree such as really, too, quite, very, and extremely are used only to qualify adjectives: She's a really nice person. The water is really hot.
Faith Marone Wiki
Adverb really (comparative more really, superlative most really) (literal) in a way or manner that is real, not unreal.
By this rule, these words should not be used to qualify.
Really digunakan untuk mengatakan apa yang sesungguhnya merupakan fakta atau kebenaran. Exclamation used to express interest, surprise, or doubt ‘i've been working hard.’ ‘really?’ used to express mild protest really, marjorie, you do jump to conclusions! Kata really bisa diletakkan di awal kalimat, tengah kalimat, maupun. Definition of really adverb in oxford advanced learner's dictionary.
(mainly us english) used to. Used to say that something is certain: Dalam beberapa kasus, really dapat digunakan sebagai kata penguat. Examples of really in a sentence the dog runs really fast.
Biasanya really diikuti verb (kata kerja), namun sering pula adverb ini diikuti adjective.
See examples of really used in a sentence. I had a really good time at the party.
