4Grammar and explanations
One sentence, several actions
English joins actions with "and" or "and then": "I get up and light the fire." Mongolian puts a suffix on the first verb instead, and only the last verb takes a tense ending.
Би босоод гал түлдэг.I get.up-CONV fire light-HAB"I get up and light the fire."
Бид үнээ саагаад цай чанана.we cow milk-CONV tea boil-PRES-FUT"We'll milk the cows and then make tea."
A verb form like босоод is called a converb: a form whose job is to link one action to the next. It never ends a sentence, and it has no tense of its own. The ending –аад says one precise thing: the first action is finished before the next one starts.
The four forms
Add –аад / –оод / –ээд / –өөд to the stem (the verb without –х), by vowel harmony.
| Verb | Stem | Converb |
|---|
| явах (to go) | яв– | яваад |
| гарах (to go out) | гар– | гараад |
| босох (to get up) | бос– | босоод |
| орох (to go in) | ор– | ороод |
| ирэх (to come) | ир– | ирээд |
| идэх (to eat) | ид– | идээд |
| өмсөх (to put on) | өмс– | өмсөөд |
After a long vowel: a г comes in
When the stem ends in a long vowel, add г first: саа– → саагаад, уу– → уугаад, угаа– → угаагаад, суу– → суугаад.
Only the last verb has a tense
The converb does not change; the final verb decides when it all happens.
Би цай уугаад гарсан.I tea drink-CONV go.out-PAST"I drank tea and went out."
Би цай уугаад гарна.I tea drink-CONV go.out-PRES-FUT"I'll drink tea and then go out."
The same is true of habits: Би цай уугаад гардаг. "I (always) drink tea and then go out." So read to the end of the sentence before you decide on the English tense.
Three actions in a row
You can chain several converbs; only the last verb carries a tense: Сүүгээ аваад гэртээ ирээд цай чанадаг. "She takes the milk, comes back into the ger, and makes tea." Each –аад closes one small action.
–аад and тэгээд
You know тэгээд "and then" from lesson 59: it starts a new sentence. –аад links verbs inside one sentence. In fact тэгээд is the converb of тэгэх "to do so": "having done so".
Go deeper in the grammar guide: Mongolian converbs · Sentences with two verbs
5Good to know
Mongolian loves pairs of words: нүүр гар (face and hands), аав ээж (father and mother, parents), хонь ямаа (sheep and goats). A pair behaves like one word, so an ending goes only on the last word: нүүр гараа угаах, to wash one's face and hands, with the reflexive –аа on гар alone.