The spelling of the phrase "am in action" can be explained using the International Phonetic Alphabet (IPA). The first sound, "æm", is represented by the symbols /æ/ and /m/. The sound /æ/ represents the short vowel sound heard in words like "cat", while /m/ represents the consonant sound produced by closing the lips and releasing the sound. The next sound, "in", is spelled using the symbol /ɪn/, which represents the short vowel sound heard in words like "sit". Finally, the word "action" includes the sounds /æk/ for the short vowel sound in "cat", followed by the sound /ʃən/ for the suffix -tion.