Some text have irregular plurals that don't abide by any of the above rules. such as: boy or girl – children, mouse – mice, tooth – enamel.
you can find so couple of terms wherever the ei spelling with the /ee/ https://murrayonnb956094.blog-gold.com/37537249/an-unbiased-view-of-spelling-rules-i-before-e-except-after-c-english-spelling-rules-spelling-rules-pdf-basic-spelling-rules-43-basic-rules-for-spelling-pdf-english-spelling-rules-pdf-phonics-spelling-rules-pdf-100-spelling-rules-free-download-pdf