Perfective present forms express the future (udělám, koupím, napíšu); budu + infinitive is only for imperfectives
I can form the future correctly for both aspects: budu + infinitive for imperfectives, present forms for perfectives.
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Zítra koupím lístky na vlak do Olomouce.
Tomorrow I will buy train tickets to Olomouc.
O víkendu budu číst a v neděli večer ti zavolám.
At the weekend I will be reading, and on Sunday evening I will call you.
Až přijedeš do Prahy, ukážu ti Vyšehrad.
When you come to Prague, I will show you Vyšehrad.
Presta attenzione alle parti evidenziate. Cosa hanno in comune?
A perfective verb has no "now". Put it into the present-tense endings you already know from dělám, píšu, kupuju, and the action moves into the future: udělám "I'll do it", napíšu "I'll write it", koupím "I'll buy it". Imperfectives build their future with budu; perfectives do not, so *budu koupit and *budu udělat are not Czech.
| Imperfective present | Imperfective future | Perfective future |
|---|---|---|
| dělám (I'm doing, I do) | budu dělat | udělám |
| píšu | budu psát | napíšu |
| volám | budu volat | zavolám |
| čtu | budu číst | přečtu |
| učím se | budu se učit | naučím se |
English has will, going to and "I'm meeting her tomorrow", and none of them tells you which Czech form to use. Ask whether you promise a finished act or describe an activity: Zítra napíšu tu zprávu (I'll get the report written) against Zítra budu psát zprávu (I'll be working on it, finished or not). Večer ti zavolám is one call; Budu ti volat každý den is a promise of many.
Because the form looks like a present, English speakers hear Hned vám přinesu jídelní lístek as "I'm bringing you the menu". It is what the waiter says before he goes to get it: "I'll bring it right away". Počkej, hned to bude - hang on, it'll be ready in a second.
After "when" and "if", English switches to the present: "when you come", "if it rains". Czech keeps the future, and for a future "when" it uses až: Až přijedeš do Prahy, ukážu ti Vyšehrad. Až dodělám diplomku, pojedu na měsíc do Chorvatska. The English habit produces Až máš čas; Czech says Až budeš mít čas, zavolej. For "if" the same applies: Jestli bude pršet, zůstaneme doma. Když with the present means "whenever": Když prší, chodíme do kina.
The form has two other jobs worth recognising. It describes something that happens again and again, each time as a whole: Vždycky přijde pozdě. (He always turns up late.) Proverbs use it the same way: Kdo dřív přijde, ten dřív mele, first come, first served. And with ne- it often means "won't manage": To do pátku nestihnu. (I won't get it done by Friday.)
Applica questa grammatica negli esercizi del corso A2
Esercizi di praticaZítra koupím lístky na vlak do Olomouce.
Tomorrow I will buy train tickets to Olomouc.
koupím: perfective present form = future, no budu.
O víkendu budu číst a v neděli večer ti zavolám.
At the weekend I will be reading, and on Sunday evening I will call you.
Both futures side by side: budu číst (imperf.) + zavolám (perf.).
Až přijedeš do Prahy, ukážu ti Vyšehrad.
When you come to Prague, I will show you Vyšehrad.
až + perfective future in time clauses about the future.
La verifica per questo argomento è ancora in preparazione
Pratica nel corso
Applica questa grammatica negli esercizi del corso A2