Grammatik3

The indefinite and definite forms,the indefinite form without an article.
The indefinite form in the singular is indicated by one of the two indefinite articles used in Swedish,en and ett(like the numeral).In the plural there is no indefinite article,but words like många many,flera several or a numeral are often used.
The definite form is indicated by an article added on to the end of the noun.In the singular the article is -n for en-words ending in a vowel and -en for en-words ending in a consonant.For ett-words the definite article is -t after a final vowel and -et after a final consonant.
In the plural the definite article is -na for those nouns that form their indeifinite plural with the endings -or,-ar,-er,and -a for those that use the ending -n.
Nouns that have the same form in the singular and the plural add -en.

The definite form can be compared to the name of a person or thing that you know.
Compare: Jag ska trätta bilen idag.Jag ska träffa Olle idag. I will wash the car today.I'll see Olle today.
In order to avoid repeating the same noun,a personal pronoun is often used instead of the definite article.
Hon har köpt en blus.Den är röd. She has bought a blouse .It is red.
When a noun in the definite form appears together with an adjective, a so-called adjective article is added.
den gula bussen,det nya huset,de röda stugorna
the yellow bus,the new house,the red cottages
The definite form is marked twice!
The definite form is also used after the following words:
den,det,de that/those,den här,det här,de här this/these,
den där,det där,de där that/those,förrar (the)previous,last, halva half(the),hela (the)whole.
Den dagen glömmer jag aldrig.That day I will never forget.
Jag ska köpa den där bilen.I will buy that car.
Vi kom hem från semestern förra veckan.We came home from our vacation last week.
Har du redan läst halva boken? Have you already finished half the book?
Han satt inne hela dagen.He sat indoors the whole day.

The indefinite form without an article
The noun is used without an article in certain situations.
1.after the verb vara be before a noun that denots
profession Hon är lärare och han är bilmekaniker.She's a teacher and he's a car mechanic.
nationality Jag är svensk.Carlo är italienare.I am a Swede.Carlo is an italian.
religion Hon är katolik.Han är muslim.She's a Catholic.He's a Muslim.
2.material Fia tycker om kaffe.Ringen är gjord av guld.Vi måste köpa smör.
Fia likes coffee.The ring is made of gold.We must buy butter.
3.means of Eva kör bil till jobbet,men Dan åker buss.
transport Eva drives her car to work,but Dan goes by bus.