I. Class

Czech verbs can be classified in several ways. Verbs that belong to the same class accept the same range of suffixes.
The most common classification has five classes - I, II, III, IV, V. We must memorize these.

We sort each verb into one of the five groups according to the form of the 3rd person singular of the present tense.

I. CLASS
3rd person singular ending: -e
infinitive ending: -st, - ct, -zt and others

číst (to read) = on čte
nést (to carry) = on nese
brát (to take) = on bere
péct (to bake) = on peče
třít (to rub) = on tře

The conjugation suffixes:
1. singular: -u - plural: -eme
2. singular: -eš - plural: -ete
3. singular: -e - plural: -ou

péct - on peče - stem: peč
(singular - plural)
1. person: peču - pečeme
2. person: pečeš - pečete
3. person: peče - pečou

passive participle: verb stem + -en
péct (to bake) - on peče - pečen
Chléb je pečen. (A bread is baked.)

imperative
verb stem + suffix: - (ty),-me (my),-te (vy)
peč! - pečme! - pečte!