    Sentence 4: How: Long: would it  take... to learn. how ‘to. speak  English ‘Tike a native speaker?    Sentence 2: Is |. it. currently  jossible .to’ devélop -a@ software  that.. can’-. speak: English bike a  native: .”-speakér.:  with*s. deep  learning: or ‘any other nachine  bearning. method?.