It may sound a bit strange but I have to find, in order to complete a project, all the rules of pronunciation of all the letters of the alphabet. I mean, for example the letter a, if it is before a double consonants, such as “ff” or before “ck” or a even single vowel, has the sound [a], but when it is before a ‘f’, ‘s’ or ‘th’ it has the sound [ah]
This is actually far more complicated, even only for the a letter, I have currently sources as https://teflpedia.com/A but it is not really understandable because sometimes they say there is some exceptions but they do not tell which, and I HAVE to be 100% accuracy.
So I came here asking you if you have any advice for my situation in order to find all the exact rules.
PS: as you can see English is not my native language so please excuse my mistakes