Contents
Chapter 17 · Words That Change (Inflection)

Numbers

Which number words change, and which stay fixed?

Number words are mostly fixed: två bilar today is still två bilar tomorrow. Only three corners of the system change form — the word for one, the ordinals, and the large numbers that behave like nouns. This chapter packs all of them into three small tables.

two cars
the first day

Which number words change?

One: en and ett

You already met this choice in En, Ett, and the Definite Form: the word for one is the same en/ett pair the noun itself demands. There is no separate counting rule to learn — match the noun's gender:

one car
one house

Cardinal Numbers Usually Stay Fixed

Most basic cardinal number words do not change:

två bilar
tre hus
fyra dagar
tjugo frågor
hundra personer

Store spelling variants instead of deriving them:

tjugo / tjugu
arton / aderton

The Number Tables

Same color marks the same reusable ending — it helps you spot the pattern, though some words need to be learned whole.

The first twelve ordinals are dictionary words — store the cardinal and its ordinal together. Even here the endings rhyme in small families:

1–12 — memorize these

#CardinalOrdinal
1
2
3
4
5
6
7
8
9
10
11
12

Tap a word to hear it. Matching colors mark the same ending.

From thirteen on the system is regular. Every teen cardinal ends in -ton, and the ordinal just adds -de:

13–19 — one pattern: -ton + de

#CardinalOrdinal
13
14
15
16
17
18
19

Tap a word to hear it. Matching colors mark the same ending.

The tens end in -tio (except tjugo), and their ordinals add -nde. hundra and tusen simply add -de:

Tens and round numbers — tens take -nde, hundra/tusen take -de

#CardinalOrdinal
20
30
40
50
60
70
80
90
100
1000

Tap a word to hear it. Matching colors mark the same ending.

In compound ordinals, the last number carries the ordinal form:

twenty-first
thirty-second

Masculine förste and andre

Some ordinal forms have optional masculine forms, used only when the noun refers to a male person:

förstaförste
andraandre
the first man

Use these like the adjective masculine -e forms. They only work with a male referent: förste mannen, but never förste kvinnan — that stays första kvinnan. Useful to recognize, not the default beginner form.

Large Number Nouns

Some large number words behave like nouns:

en miljontvå miljoner
en miljardtvå miljarder
two million

Treat these as noun paradigms, not as ordinary fixed cardinal numerals.

Chapter summary

Number typeInflection habitExample
oneagrees with noun genderen/ett
ordinary cardinalstays fixedtvå, tjugo, hundra
ordinal 1-12memorize the tableförsta, andra, tolfte
later ordinalrecognize -de/-nde/-onde familiestrettonde, tjugonde
compound ordinallast element becomes ordinaltjugoförsta
large number nounfollows a noun paradigmmiljon -> miljoner
Practice

Study check

8 questions
  1. 1

    ___ bil for "one car"

  2. 2

    ___ hus for "one house"

  3. 3

    ___ dagen for "the first day"

  4. 4

    två ___ for "two million"

  5. 5

    ordinal of tretton

  6. 6

    ordinal of tjugo

  7. 7

    ordinal of trettio

  8. 8

    ordinal of tjugoett

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