HF words
High frequency words are words which we use most of all.
Of 100 most HF ones, 42 are phonically not totally simple (in descending order from the most frequent):
^ he, of, the, to, was,
all, be, are, have, one, said, we, you, by, my, call, before, come, could, do, down, into, look, me, more, now, only, other, right, she, some, their, there, two, when, want, were, what, where, which, who, your.^
The other 58 simpler:
a, and, as, at, had, has, that, an, back, can,
in, is, it, if, did, him, his, with, big, little, this, will, first,
get, them, then, well, went, her
not, on, from, off, so, go, no, or, for,
but, much, must, up, just,
they,
been, here, see, came, made, make, I, like,
our, out, about,
new, over, old.
But the main pronunciations for some graphemesl, such as 'ere' in 'here', often get undermined by irregular ones (were, there) and make even basic phonics trickier than could be.