8. _Of Affirmation_; as, Verily, truly, undoubtedly, doubtless,
certainly, yea, yes, surely, indeed, really, &c.
9. _Of Negation_; as, Nay, no, not, by no means, not at all, in no wise,
&c.
10. _Of Interrogation_; as, How, why, wherefore, whither, &c., and
sometimes when, whence, where.
11. _Of Comparison_; as, More, most, better, best, worse, worst, less,
least, very, almost, little, alike, &c.