Here's why:
* Pronunciation: The word "read" is pronounced with a long "e" sound (as in "see") when used as the past tense verb. It is spelled "read" but pronounced /red/.
* Schwa Sound: The schwa sound (ə) is a very common, short, and unstressed vowel sound in English. It's often found in words like "about," "again," and "the."
Therefore, the "e" in "read" is a long vowel sound, not a schwa.