'True iff i-2,i-1,i is consonent-vowel consonant
and if second c isn\'t w,x, or y.
used to restore e at end of short words like cave, love, hope, crime'

def cvc(self, i):

    if ((i < 2) or (not self.cons(i)) or self.cons((i - 1)) or (not self.cons((i - 2))) or (self.b[i] in 'wxy')):
        return False
    return True
