Do you have any rule in pronunciation which says: if in a word we have a consonant letter between two vowels like "nature" the first vowel is usually pronounced like its name in alphabet, for example the letter "a" in "nature" is pronounced "ey" which is the pronunciation of "a" in alphabet.
Thanks,
Ata
We have a rule which says for one syllable words if the last vowel is long so there should be one "e" at the end of the word say (make, lake, etc) but if the last vowel is small there shouldn't be such "e" say (big, rig, fig, lack, etc)
The word "usually" is one of the confirming examples of the first dubious rule I mentioned because the first u is pronounced "yu" like its name in alphabet.
How about unimportant?
I have seen similar rules, yes. But, as I said, I doubt their utility. What is the use of such a rule for a learner? If a rule has just a couple of exceptions, it can be useful. This rule seems impossible to be simple and reliable at the same time, however you will phrase it.