C.) If the stem vowel is ů, ex. bůh, this ů changes into o in all oblique cases, (all other cases except nominative singular), bozi, nom. pl., boha, of the god, etc.

D. Hard consonants must soften before i or í (locative plural), see [lesson VI.] on the necessary change.

E.) In the vocative the stem vowel shortens in pane! Sir! The hard consonants softens before -e, in this case: bože! God!, bratře! brother! With many nouns ending in ch, h, and k the vocative singular ends in -u, hochu! vojáku! synu!

F.) e before the final consonant is dropped out in the oblique cases, Ex. pes, dog, psi, psu, etc. Orel, eagle, orla, orli; Turek, Turk, Turka.

Infinitive and past participle of verbs.—Neurč. způsob a příčestí sloves.

I. pers. sing.Infinitive.Past participle.
volám, I call,volati, to call,volal, called,
dám, I give,dáti, to give,dal, given,
znám, I know,znáti, to know,znal, known, knew,
chválím, I praise,chváliti, to praise,chválil, praised,
mluvím, I speak,mluviti, to speak,mluvil, spoken, spoke,
chodím, I walk,choditi, to walk,chodil, walked.

Almost all the Bohemian verbs end in the infinitive of -ti. The participle (masculine) is very often formed by replacing the infinitive ending -ti by -l.—The past participle adds -i in masculine plural, -a in feminine singular, -y in feminine plural.

Žák mluvil. The pupil spoke. Žáci mluvili. The pupils spoke. Sestra mluvila. The sister spoke. Sestry mluvily. The sisters spoke.

The formation of the past tense.