✔ 最佳答案
(1) "ain't + no" is a double negative used to convey a negative meaning, e.g. "he ain't no angel" (meaning: he is definitely not pure and innocent like an angel). This is informal English, which is grammatically incorrect, but widely used among the less educated, or sometimes used deliberately even by an educated person during verbal conversations, to emphasize a point.
(2) "you make me happy" does not require "to be" or "be" before the adjective because in this sentence the adjective (happy) is used as an object complement, which follows directly after the object (me), and qualifies it.
3 ) In "who could not be named 佛地魔 " , "not be" is used with the modal verb "could" to form a passive voice.
