It is fair to say that most native English-speakers make mistakes in this area, which is one of the more troublesome aspects of English.
ɪ t WORD_BOUNDARY ɪ z WORD_BOUNDARY f ɛ ɹ WORD_BOUNDARY t ə WORD_BOUNDARY s eɪ WORD_BOUNDARY ð æ t WORD_BOUNDARY m oʊ s t WORD_BOUNDARY n eɪ t ɪ v WORD_BOUNDARY ɪ ŋ ɡ l ɪ ʃ s p iː k ə ɹ z WORD_BOUNDARY m eɪ k WORD_BOUNDARY m ɪ s t eɪ k s WORD_BOUNDARY ɪ n WORD_BOUNDARY ð ɪ s WORD_BOUNDARY ɛ ɹ iə WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY ɪ z WORD_BOUNDARY w ʌ n WORD_BOUNDARY ʌ v ð ə WORD_BOUNDARY m ɔ ɹ WORD_BOUNDARY t ɹ ʌ b ə l s ʌ m WORD_BOUNDARY æ s p ɛ k t s WORD_BOUNDARY ʌ v WORD_BOUNDARY ɪ ŋ ɡ l ɪ ʃ WORD_BOUNDARY