Breakdown of Официант подаст нам чай после ужина.
Questions & Answers about Официант подаст нам чай после ужина.
Подаст is future here.
It comes from the verb подать, which is a perfective verb. In Russian, perfective verbs do not normally have a true present tense. Their present-looking forms are used with future meaning.
So:
- подать = perfective, to serve / hand / give as a completed action
- подаст = he/she will serve
This fits the sentence because it describes one completed action in the future: the waiter will serve the tea after dinner.
Compare:
- официант подаёт чай = the waiter serves / is serving tea
- from подавать (imperfective)
- официант подаст чай = the waiter will serve tea
- from подать (perfective)