ли
Indirect Yes-no Question with Ли
The particle ли is the standard way to form indirect yes-no questions in Russian. It corresponds to the English words 'if' or 'whether' when reporting a question or expressing doubt.
How It Works
In Russian, when you want to embed a yes-no question into another sentence (e.g., 'I don't know if...'), you cannot use the word если (which is only for conditions). Instead, you use ли.
Key Rules:
- Position: Ли always comes after the word you are questioning. Usually, this is the verb, but it can be a noun or adjective if that is the focus.
- Word Order: The word followed by ли moves to the front of the subordinate clause.
- Punctuation: A comma always separates the main clause from the subordinate clause containing ли.
Focus Examples:
1. Я не знаю, придёт ли он. (I don't know if he will come.) - Focus on the action.
2. Я не знаю, он ли придёт. (I don't know if it is he who will come.) - Focus on the person.
Examples (4)
- Я не знаю, будет ли завтра дождь.
I don't know whether it will rain tomorrow.
Word by Word: I not know, will [particle] tomorrow rain.
Here, 'ли' follows the verb 'будет' to ask if the event will happen.
- Он спросил, готов ли обед.
He asked if dinner was ready.
Word by Word: He asked, ready [particle] dinner.
The focus is on the state of the dinner, so 'ли' follows the short adjective 'готов'.
- Трудно сказать, правда ли это.
It is hard to say whether this is the truth.
Word by Word: Hard to-say, truth [particle] this.
In this case, 'ли' follows the noun 'правда' to question the fact itself.
- Мы хотели узнать, свободны ли вы.
We wanted to find out if you are free.
Word by Word: We wanted to-find-out, free [particle] you.
The particle follows the plural short adjective 'свободны'.
Common Mistakes
Using 'если' instead of 'ли' for indirect questions.
Я не знаю, если он придёт.Я не знаю, придёт ли он.'Если' is only for 'if' in conditional 'if/then' scenarios. For questions, you must use 'ли'.
Placing 'ли' at the beginning of the clause.
Я спросил, ли он дома.Я спросил, дома ли он.'Ли' is an enclitic; it cannot start a clause. It must follow the word being questioned.
Using 'ли' with other question words like 'кто' or 'где'.
Я не знаю, где ли он.Я не знаю, где он.In an indirect question, 'ли' marks a yes-no question. If you already have a question word like 'где' (where), 'ли' is not needed. (Fixed phrases like 'что ли' are a separate use.)
How It Connects
Learn This First
To learn indirect yes-no questions with 'ли', a learner first needs to understand how direct yes-no questions work in Russian. They must also be familiar with the general structure of complex sentences containing indirect questions (subordinate clauses) and how word order shifts to emphasize the specific word being questioned by the particle 'ли'.
- Yes-no question by intonation
Understanding how to form a direct yes-no question is the basis for converting it into an indirect one.
Level 1 - Indirect wh-question
Understanding the general structure of indirect questions (subordinate clauses) is necessary before learning the specific 'ли' construction.
Level 3
Related Patterns
- если + Future TenseReal Condition with Future
While 'ли' is for indirect questions, 'если' is used for actual conditions (If X happens, then Y).
Level 3 - Topic and focus word order
The position of 'ли' is a prime example of how Russian uses word order to highlight the 'focus' of a sentence.
Level 3 - что + Complement ClauseComplement Clause with Что
Used for reporting facts (I know THAT...), whereas 'ли' is used for reporting uncertainties (I don't know IF...).
Level 3
Learn Next
Patterns that build on this one.