(b). Verbs which are generally used with the subject expressed, but occasionally without.
Examples.—Okazas = It happens. Ŝajnos = It will seem. Prosperis al mi trovi = It was my fortune to find.
(c). The verb esti = to be, when used with an adjective-adverb, or passive participle-adverb.
Examples.—Estas pli bone forkuri = It is better to run away. Estas dirite, ke ... = It is said that ...
(d). In the compound tenses the participle takes the adverbial form, since there is no noun or pronoun with which it can agree (see par. [245]).
Examples.—Se estus pluvinte hieraŭ, ni ne estus povintaj eliri = If it had (should have) rained yesterday, we should not have been able to go out. Mi tondigos la herbon, kiam estos pluvinte = I shall get the grass cut, when it has (will have) rained.
Reflexive Verbs (refleksivaj verboj).
165. Reflexive verbs show the action of the subject on itself. They are used only when the subject really acts on itself, and not, as in many other languages, on other occasions (see par. [128] on the use of the reflexive pronoun si, and par. [170], conjugation of a reflexive verb).
Examples.—Mi lavas min = I wash myself. Li lavis sin = He washed himself. Vi razos vin = You will shave yourself. Ili vestis sin = They dressed themselves.
166. When there are more subjects than one, and the act goes from one to another of the subjects, the word reciproke, or the expression unu la alian, may be used. With the latter the personal pronoun is not repeated.