4Grammar and explanations
"If" is an ending on the verb
English puts "if" at the start of the condition. Mongolian puts an ending on the verb of the condition: –вал / –вол / –вэл / –вөл. Like –аад and –ж, it is a converb: it has no tense, and the sentence goes on to a main verb that closes it.
Цас орвол бид машинаар явахгүй.snow fall-CONV we car-INS go-PART-NEG"If it snows, we won't go by car."
Хүйтэн байвал дулаан хувцас өмсөөрэй.cold be-CONV warm clothes put.on-IMP"If it's cold, put on warm clothes."
The condition always comes first and the main clause last. The main verb can be a statement, a plan or an order.
The four forms
The vowel follows the stem, as in the other four-form endings:
| Verb | Stem | If… |
|---|
| байх (to be) | бай– | байвал |
| орох (to fall, to enter) | ор– | орвол |
| босох (to get up) | бос– | босвол |
| ирэх (to come) | ир– | ирвэл |
| хийх (to do) | хий– | хийвэл |
| өгөх (to give) | өг– | өгвөл |
After л and в: –бал
After a stem ending in л or в, you will often meet a б instead of в: явбал (if … go), дуулбал (if … sing), эхэлбэл (if … begin). The meaning is the same. Learn these forms as you meet them.
"If not": –хгүй бол
To make a negative condition, do not put the ending on a negative verb. Use the negative –хгүй and then the word бол:
Цас орохгүй бол машинаар явна.snow fall-PART-NEG if car-INS go-PRES-FUT"If it doesn't snow, we'll drive."
бол is also what you use when the condition has an adjective or a noun and no verb: Хямд бол авъя. "If it's cheap, let's buy it."
хэрэв: the optional signpost
You can open the condition with хэрэв (or хэрвээ), "if". It warns the listener that a condition is coming, but it is optional: the ending is what makes the condition.
Хэрэв бороо орвол би явахгүй.if rain fall-CONV I go-PART-NEG"If it rains, I won't go."
Without the ending, хэрэв alone does not make a condition.
If and when
–вал also covers English "when" for things that will surely happen: Зун ирвэл… is "when summer comes…", since summer always comes. The context tells you which English word to use.
Go deeper in the grammar guide: The Mongolian conditional · Mongolian converbs