Question 1

Why is the verb начну used here instead of начинаю or буду начинать?

Accepted Answer

Начну is the first-person singular future form of the perfective verb начать. Perfective verbs in Russian don’t have a present tense—they only express completed actions. So начну means “I will start” as a single whole event. In contrast, начинаю is the present tense of the imperfective начинать (“I am starting” or “I start” right now), and буду начинать would be a periphrastic future of the imperfective (“I will be starting”), which emphasizes the process rather than the moment of beginning.

Question 2

What is the difference between начать and начинать?

Accepted Answer

Начать is the perfective infinitive (to begin/do something to completion), and начинать is the imperfective infinitive (to be in the process of beginning or to habitually begin).  
• Imperfective (начинать): describes ongoing, repeated, or habitual actions (“I’m starting,” “I used to start”).  
• Perfective (начать): describes a single, complete action (“I will start,” “I started once”).

Question 3

Why is изучать in the imperfective aspect and not the perfective изучить?

Accepted Answer

Изучать (imperfective) focuses on the ongoing process of studying. When you say Я начну изучать грамматику, you indicate you’re beginning the process, not necessarily finishing it. If you used the perfective Я начну изучить грамматику, it would sound odd, because you’d be saying “I will start to learn completely,” but the perfective изучить already implies completion (“I will learn/learned”). Generally, perfective + perfective infinitive is unusual when you mean “start doing something,” so you pair perfective начать with imperfective изучать.

Question 4

Why are there two verbs начну изучать in a row? How does that structure work?

Accepted Answer

In Russian, you can combine a perfective verb of “beginning” (like начать, приступить, запустить) with an infinitive in the imperfective aspect to express “start doing X” as a process. The first verb (начну) pinpoints the moment you will begin; the second verb (изучать) describes the action you’ll be doing after that moment.

Question 5

Why is грамматику in the accusative case, and how do I decline it?

Accepted Answer

Грамматика is a feminine noun. To make it the direct object of изучать, you put it in the accusative case. For feminine nouns ending in -а in the nominative, the accusative ending is -у:  
• Nominative: грамматика (grammar)  
• Accusative: грамматику (grammar as an object)

Question 6

Do I need to include the pronoun Я in the sentence?

Accepted Answer

No, the pronoun Я (I) is optional in Russian because the verb ending -у in начну already tells you the subject is “I.” You can say simply Начну изучать грамматику. Leaving out Я is common in informal speech or when the subject is obvious.

Question 7

What is the difference between Я начну изучать грамматику and Я буду изучать грамматику?

Accepted Answer

• Я начну изучать грамматику emphasizes the point in time when you begin the process of studying grammar.  
• Я буду изучать грамматику uses the future tense of the imperfective verb изучать, simply stating “I will study grammar” (emphasizing the future action or duration, not specifically its start).

Question 8

Is the word order flexible here? Could I say Начну изучать грамматику or move я elsewhere?

Accepted Answer

Yes. Russian has fairly flexible word order for emphasis. Standard is Я начну изучать грамматику (S-V-O), but you can say:  
• Начну изучать грамматику. (omit я)  
• Я грамматику начну изучать… (shifts emphasis to “grammar”)  
Each variation changes the focus or style but retains the same general meaning.

Я начну изучать грамматику.

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