4Grammar and explanations
Two kinds of "if"
Every hypothesis (таамаглал) is either something that could still happen or something you are only imagining. English often blurs the two; Mongolian uses two different constructions.
| Kind | Condition | Result | Example |
|---|
| real, open | –вал | –на (or a question, an order) | Хэрэв би үлдвэл багш болно. |
| unreal, imagined | –сан бол | –х байсан | Мөнгө байсан бол явах байсан. |
| unreal and negative | –аагүй бол | –хгүй байсан | Чи ирээгүй бол бид уулзахгүй байсан. |
The real condition: it could happen
–вал (lesson 93) is for a condition that may well come true. The result is a plain present-future, a question or an order.
Хэрэв чи Канадад ирвэл манайд амьдарна.if you Canada-DAT come-CONV our.place-DAT live-PRES-FUT"If you come to Canada, you'll stay at our place."
The unreal condition: imagining
–сан бол … –х байсан (lesson 145) is for a condition contrary to the facts: it is not so, or it did not happen. One pattern covers both "if I were…, I would…" and "if I had…, I would have…"; the situation tells you which English you need.
Мөнгө байсан бол маргааш л явах байсан.If I had the money, I'd go tomorrow.
Хэрэв би Монголд төрсөн бол хүйтнээс айхгүй байсан.if I Mongolia-DAT be.born-PAST if cold-ABL fear-PART-NEG be-PAST"If I had been born in Mongolia, I wouldn't be afraid of the cold."
Negative and unreal: if … had not
When the imagined condition is negative, use the past negative –аагүй before бол, and the result is usually negative too:
Чи Монголд ирээгүй бол бид уулзахгүй байсан.If you hadn't come to Mongolia, we would never have met.
How to choose
Ask one question: can it still happen? If yes, –вал. If no, because you are imagining or rewriting the past, –сан бол. Nomin's first question is open, since Limba really could stay, so she uses үлдвэл. Being born in Mongolia is impossible now, so Limba says төрсөн бол.
хэрэв and хэрвээ are optional signposts in both constructions: they warn the listener at the start of the sentence that a condition is coming.
Go deeper in the grammar guide: The Mongolian conditional · Saying no in Mongolian
5Good to know
Minus forty is no exaggeration. In much of Mongolia winter nights often fall below minus thirty, and Ulaanbaatar is often called the coldest capital city in the world.
Nomin's wish uses –аасай (lesson 99), the form of hopes: Чамайг дахин ирээсэй! "May you come again!" In a wish with гэж, the person you wish it for usually goes in the accusative, чамайг.