In English and many other languages, verbs change their form. This is called inflection. Most English verbs have six inflected forms (see the table), but "be" has eight different forms.
ɪ n WORD_BOUNDARY ɪ ŋ ɡ l ɪ ʃ WORD_BOUNDARY æ n d WORD_BOUNDARY m ɛ n i WORD_BOUNDARY ʌ ð ə ɹ WORD_BOUNDARY l æ ŋ ɡ w ɪ d̠ʒ ɪ z WORD_BOUNDARY v ɜː b z WORD_BOUNDARY t̠ʃ eɪ n d̠ʒ WORD_BOUNDARY ð ɛ ɹ WORD_BOUNDARY f ɔ ɹ m WORD_BOUNDARY ð ɪ s WORD_BOUNDARY ɪ z WORD_BOUNDARY k ɔ l d WORD_BOUNDARY ɪ n f l ɛ k ʃ ə n WORD_BOUNDARY m oʊ s t WORD_BOUNDARY ɪ ŋ ɡ l ɪ ʃ WORD_BOUNDARY v ɜː b z WORD_BOUNDARY h æ v WORD_BOUNDARY s ɪ k s WORD_BOUNDARY ɪ n f l ɛ k t ɪ d WORD_BOUNDARY f ɔ ɹ m z WORD_BOUNDARY s iː WORD_BOUNDARY ð ə WORD_BOUNDARY t eɪ b ə l WORD_BOUNDARY b ʌ t WORD_BOUNDARY b iː WORD_BOUNDARY h ʌ z WORD_BOUNDARY eɪ t WORD_BOUNDARY d ɪ f ɹ ə n t WORD_BOUNDARY f ɔ ɹ m z WORD_BOUNDARY