Let uses /ɛ/ and rhymes with pet, wet, sweat, duet, etc.
May uses /e/, and the California pronunciation is /me̞ː/ it’s not a diphthong, just a long vowel sound
there are three different e sounds that i as an American English speaker cannot discern.
Sure you can. Unless you think that the two vowels in “entrain” or “explain” or “enchain” have the same sound, you’re aware of both the /ɛ/ and /e/ sounds, and you know they’re different. If you can hear the difference between the two vowels in “obtain” then you can hear the difference between /ə/ and /e/.
Not according to any dictionary I’ve ever seen.
Let uses /ɛ/ and rhymes with pet, wet, sweat, duet, etc.
May uses /e/, and the California pronunciation is /me̞ː/ it’s not a diphthong, just a long vowel sound
Sure you can. Unless you think that the two vowels in “entrain” or “explain” or “enchain” have the same sound, you’re aware of both the /ɛ/ and /e/ sounds, and you know they’re different. If you can hear the difference between the two vowels in “obtain” then you can hear the difference between /ə/ and /e/.
Yes schwa i can hear, entrain explain and enchain all rhyme perfectly and they all have ai as a dipthong
Neither of those is schwa. I can only assume you’re trolling.