должно быть
“должно быть” (dolzhno byt) — must be, presumably in Russian. Phrase, level B1, topic — basic words. Dolzhno byt, on prospal i opozdal — "he must have overslept and been late" — so it is bound to come out; no debt in it: a conclusion, not an order, and the comma after it is optional. In a live sentence: “Должно быть, он проспал и опоздал” — He must have overslept and been late.
In short
| Written in Russian | должно быть |
| Read in Latin letters | dolzhno byt |
| Translation | must be, presumably |
| Part of speech | phrase |
| Level | B1 |
Why it looks that way
Dolzhno byt, on prospal i opozdal — "he must have overslept and been late" — so it is bound to come out; no debt in it: a conclusion, not an order, and the comma after it is optional.
A word with a story stays in memory longer than one learned as a “spelling — translation” pair: memory holds on to meaning, not to a string.
In a live sentence
A single word almost never appears alone in conversation. A sentence shows where it fits and what stands next to it.
- Должно быть, он проспал и опоздалDolzhno byt, on prospal i opozdalHe must have overslept and been late
Nearby words: basic words
Yes, no, good, bad, very. The small change of a language — and no sentence assembles without it.
- даdayesThe shortest word of agreement there is. The negation of a verb is a different word, ne: ne ponimayu, "I do not understand".
- нетnetnoSays "no" and also "there is not": menya net vremeni is literally "of me there is no time". A verb, by contrast, is negated by ne, a word of its own.
- иiandKeeps a list together even in front of the last item: khleb i moloko. It never changes shape, whatever it joins.
- аaand (contrasting)Compares rather than opposes: ya rabotayu, a ty? — "I work, and you?". English folds it into "and" or "but"; the contrast here is softer than no.
- хорошоkhoroshogood, fineBoth the adverb "well" and the standard reply to how-are-you. Stress it on the end: kha-ra-SHO.
- плохоplokhobad, badlyThe twin of khorosho. Often about how someone feels rather than a verdict: mne ploho means "I feel bad".
- отличноotlichnogreatKhorosho with a margin, from otlichit, "to tell apart" — also the top school mark. The bright answer to how-are-you.
- наnaon, atA chameleon of a preposition: na ulitse, na pochte, na dve nedeli. English splits it into on, at and for; this one does all three.
- вvin, intoOne letter, two cases: v gorode says where, v gorod says where to. Place and direction ride on the case, not on two prepositions.
- ноnobutArgues rather than compares: khochu, no nelzya. The twin of a: a compares, no stands against; English folds both into "but".
Test yourself
Five questions from the same set — “basic words”. Recalling a spelling from meaning is harder than knowing a familiar word on sight, and therefore more useful.
- How do you say “must be, presumably” in Russian?
Dolzhno byt, on prospal i opozdal — "he must have overslept and been late" — so it is bound to come out; no debt in it: a conclusion, not an order, and the comma after it is optional.
- How do you say “great” in Russian?
Khorosho with a margin, from otlichit, "to tell apart" — also the top school mark. The bright answer to how-are-you.
- How do you say “and” in Russian?
Keeps a list together even in front of the last item: khleb i moloko. It never changes shape, whatever it joins.
- How do you say “but” in Russian?
Argues rather than compares: khochu, no nelzya. The twin of a: a compares, no stands against; English folds both into "but".
- How do you say “bad, badly” in Russian?
The twin of khorosho. Often about how someone feels rather than a verdict: mne ploho means "I feel bad".
How not to forget this word
Reading a word and remembering it are different jobs. A day later, little survives of a single reading — and that is not bad memory, that is how memory works.
- This has been tested on foreign words too. The difference shows up most when you test yourself a few days later rather than straight away.checked many timesKim & Webb, 2022, Language Learning 72(2) · 48 experiments, 3,411 participants, 98 comparisons.
- Recalling beats re-reading. Covering the translation and trying to remember it does more than reading it ten more times.checked many timesAdesope, Trevisan & Sundararajan, 2017, Review of Educational Research 87(3) · 188 experiments, 272 comparisons. g = 0.61; against plain re-reading 0.51, against passive review 0.93.
- An answer you worked out yourself sticks better than one handed to you.checked many timesBertsch et al., 2007, Memory & Cognition 35(2) · 86 studies, 445 comparisons, d = 0.40.
Frequently asked
How do you say “must be, presumably” in Russian?
«должно быть», read “dolzhno byt”. In a live sentence: “Должно быть, он проспал и опоздал” — He must have overslept and been late. Phrase, level B1, from the set “basic words”; written with the characters д, о, л, ж, н, о, б, ы, т, ь.
How is “должно быть” written in Latin letters?
dolzhno byt. This is a practical spelling — you need it to read aloud and be understood, not to meet an academic standard.
Why does this word look the way it does?
Dolzhno byt, on prospal i opozdal — "he must have overslept and been late" — so it is bound to come out; no debt in it: a conclusion, not an order, and the comma after it is optional. A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.