eo ut veniat, _I fear that he will not come_ (originally: _may he
come! I'm afraid_ [_he won't_]).

a. Ne non sometimes occurs instead of ut, especially where the verb of
_fearing_ has a negative, or where the writer desires to emphasize some
particular word in the dependent clause; as,--

non vereor ne hoc non fiat, _I am not afraid that this will not
happen;_

vereor ne exercitum firmum habere non possit, _I fear that he is
unable_ (non possit) _to have a strong army._

C. Substantive Clauses of Result.

297. Substantive Clauses of Result (introduced by ut, ut non) are a
development of pure Result clauses, and occur with the following classes of
words:--

1. As object clauses after verbs of _doing_, _accomplishing_ (especially
facio, efficio, conficio). Thus:--

gravitas morbi facit ut medicina egeamus, _the severity of disease
makes us need medicine._

2. As the subject of several impersonal verbs, particularly fit, efficitur,
accidit, evenit, contingit, accedit, fieri potest, fore, sequitur,
relinquitur. Thus:--

ex quo efficitur, ut voluptas non sit summum bonum, _from which it
follows that pleasure is not the greatest good_;

ita fit, ut nemo esse possit beatus, _thus it happens that no one can
be happy_;

accedebat ut naves deessent, _another thing was the lack of ships_
(lit. _it was added that ships were lacking_).

3. As predicate or appositive after expressions like jus est, mos est,
consuetudo est; also after neuter pronouns, hoc, illud, etc. Thus:--

est mos hominum ut nolint eundem pluribus rebus excellere, _it is the
way of men not to wish the same person to excel in many things._

D. Substantive Clauses introduced by _Quin_.

298. Substantive Clauses introduced by quin (used sometimes as subject,
sometimes as object) occur after negative and interrogative expressions of
_doubt_, _omission,_ and the like, particularly after non dubito, _I do not
doubt_; quis dubitat, _who doubts?_; non (haud) dubium est, _there is no
doubt_. The mood is the Subjunctive. Examples:--

quis dubitat quin in virtute divitiae sint, _who doubts that in virtue
there are riches?_

non dubium erat quin venturus esset, _there was no doubt that he was
about to come._

a. In Nepos, Livy, and post-Augustan writers an Infinitive sometimes
takes the place of the quin-clause after non dubito; as,--

non dubitamus inventos esse