Main spellings (~100%)
⟨p⟩ ~100%
The letter ⟨p⟩ covers virtually all words with the /p/ sound.
Doubled consonants: When ⟨pp⟩ appears in the middle of a word, it still makes just one /p/ sound. Examples: happy, pepper, stopped.
The letter ⟨p⟩ covers virtually all words with the /p/ sound.
The ⟨ough⟩ pattern can end with ⟨gh⟩ → /f/ or /p/. The /p/ pronunciation is rare.
In a few words, ⟨ph⟩ makes /p/ instead of the usual /f/.
Silent ⟨b⟩ before ⟨p⟩.