This often comes as a setback for students of Russian: of (almost) every Russian verb there are two. Which do mean approximately the same thing, but express very different things. So you need to know both, and of both learn the conjugations.
Russian verbs are either perfective (совершенный вид, сов./св.) or imperfective (несовершенный вид, нес./нсв.) and thus form pairs. The first expresses result (a completed action), the second process, unfinished or repeated action. To compare with the difference between reading out and reading in.
I am reading a book (right now, every day, for two hours, etc.): Я читаю книгу, from verb читать (imperfective). I read a book (out, at the end, three times, etc.): Я прочитал книгу, from verb прочитать (perfective). And with Я прочитаю you say you will read it (out).
As simple as in читать and прочитать, imperfective and perfective are not always distinguishable. However, more often you can tell by the preposition what is what, as in видеть - увидеть (see), играть - сыграть (play) and расти - вырасти (grow). The verb with preposition is then always the perfective of the two; покупать - купить (buy) is an exception.
These are some common verb pairs (imperfective - perfective):
Because result always refers to past or future tense (I read the book or I will read it), the perfective verb has no (conjugations in) present tense. The imperfective is already there for that. It too has (conjugations in) past tense; for future tense you conjugate (only) the verb be. Both in я читал (I read) and я буду читать (I will read) you speak of the process or of a repeated/unfinished action.
All this leads to each verb pair having 20 conjugations. Which sometimes you just have to learn by heart, because not all parts are equally logical or predictable. See for example this one, from давать and дать (giving).
давать (imperfect) | дать (perfective) |
---|---|
present tense | future tense |
(я) даю | (я) дам |
(ты) даёшь | (ты) дашь |
(он/она/оно) даёт | (он/она/оно) даст |
(мы) даём | (мы) дадим |
(вы) даёте | (вы) дадите |
(они) дают | (они) дадут |
past tense | past tense |
(я/ты/он) давал | (я/ты/он) дал |
(я/ты/она) давала | (я/ты/она) дала |
(оно) давало | (оно) дало |
(мы/вы/они) давали | (мы/вы/они) дали |
More at multiple channels. Here by year (new-old) of the inserted video.
Aspects of Russian verbs: imperfective and perfective
(2021, 14 m)
Verbal Aspect in Contrast. Part 1: Imperfective Present vs. Perfective Past
(2020, 16 m)
See also
Делать или сделать? | Глаголы НСВ и СВ. Настоящее-прошедшее время
(2019, 18 m)
See also Урок 2. Буду делать или сделаю? | Глаголы НСВ и СВ. Будущее время (2019, 18 m) en van daarna Инфинитив НСВ или СВ? || Глаголы НСВ и СВ (2020, 21 m).
Clues To Perfective and Imperfective Verbs in Russian
(2019, 6 m)
See also Imperfective / perfective verbs: how to spot (2018, 9 m), Perfective or Imperfective / Practice (2018, 12 m) and from recent (2021) multiple livestreams. From the introduction to more recent
and then two songs as well, about заказывать - заказать and брать - взять.
Verbal Aspect in Russian: an Introduction
(2013, 3 m)
See also Verbal Aspect in Russian (II): Forms (2013, 5 m).
Zie
See/read
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