Present

Czech verbs in infinitive usually end by -t or -ti but we can find some with -ci or -ct which doesn't influence conjugation at all. However the most important verbs such as být (to be) are irregular so the best way to learn them is separately for ex. from this summary. To be able to conjugate regular ones we have to divide them in 5 classes based on their present form in the 3^rd person of singular. Native speaker does it naturally and most of Czechs doesn't even know about existence of classes. Foreigner has to learn not just infinitives and their traductions but the present in 3^rd p. of sg. If you know it, you can simply change the suffixe for other person.

Frequently-used verbs and their present form in 3^rd p. of sg

czech infinitive	present form	translation (infinitive)		class
číst	on čte	to read	he's reading	1
jet/jít	on jde	to go	he's going	1
psát	on píše	to write	he's writing	1
žít	on žije	to live	he's living	3
milovat	on miluje	to love	he loves	3
stát	on stojí	to stand/to cost	he's standing	4
spát	on spí	to sleep	he's sleeping	4
jíst	on jí	to eat	he's eating	4
volat	on volá	to call	he's calling	5

1^st class: -e

nést - on nese (to carry)

	sg	pl
1^st	já nesu	my neseme
2^nd	ty neseš	vy nesete
3^rd	on nese	oni nesou

psát - on píše (to write)

	sg	pl
1^st	já píši	my píšeme
2^nd	ty píšeš	vy píšete
3^rd	on píše	oni píší

2^nd class: -ne

začít - on začne (to start)

	sg	pl
1^st	já začnu	my začneme
2^nd	ty začneš	vy začnete
3^rd	on začne	oni začnou

3^rd class: -je

kupovat - on kupuje (to buy)

	sg	pl
1^st	já kupuji	my kupujeme
2^nd	ty kupuješ	vy kupujete
3^rd	on kupuje	oni kupují

4^th class: -í

prosit - on prosí (to beg)

	sg	pl
1^st	já prosím	my prosíme
2^nd	ty prosíš	vy prosíte
3^rd	on prosí	oni prosí

5^th class: -á

dělat - on dělá (to do)

	sg	pl
1^st	já dělám	my děláme
2^nd	ty děláš	vy děláte
3^rd	on dělá	oni dělají

Present

Frequently-used verbs and their present form in 3rd p. of sg

1st class: -e

2nd class: -ne

3rd class: -je

4th class: -í

5th class: -á