(1) With certain impersonal verbs, such as =täytyy=, =pitää=, =tulee=,
=käskee=, =sopii=, =kelpaa=, =tarvitsee=, and with the verb =olla=,
when this latter is used with certain adjectives. =Minun pitää
lähteä ulkomaalle=, _I must go abroad_. =Hänen sopii viipyä täällä=.
=Subjectisanan tulee olla nominativissa tai partitivissa=, _the subject
must be in the nominative or partitive_. =Parempi minun olisi, parempi
olisi ollut=, _better had it been for me_. =Ei hänen ollut vaikea päästä
ulos=, _he had no difficulty in getting out_.
(2) A good many words expressing some state or feeling are used with the
verb =olla=, and a genitive of the person who feels. =Minun on jano=, _I
am thirsty_; =minun on nälkä=, _I am hungry_; =minun on tarve=, _I must_.
=Hänen on aika mennä=, _it is time for him to go_. Similarly, =Rikkaiden
on velvolisuus antaa köyhille=, _it is the duty of the rich to give to
the poor_. =Sotamiehen on pakko mennä vaaraan=, _it is the duty of a
soldier to go into danger_. In these latter sentences the genitive seems
quite natural in our idiom, but they are really closely analogous to the
phrases given above. In the dialect spoken about St. Petersburg it is
usual to say =minulla= (not =minun=) =on jano, nälkä=.
Some of the examples quoted above support the idea (_v._ p. 24), that
there is an old dative in Finnish ending in =n=, which has become
confused with the genitive. It is hardly possible to explain otherwise
such expressions as =Jumalan kiitos=, _thank God_; =Anna minun olla
rauhassa=, _leave me in peace_.
IV. The genitive is used with the infinitives and participles to denote
the agent. Examples of this use will be found in the description of the
use of those parts of the verb (p. 184, ff.).
This use is also found after caritive adjectives. =Miekan miehen
käymätöntä= (Kal. xxviii. 257), _untouched by the sword of man_.