Have,has = har ?
Like , " I have " = " Jag har " ?
"You have " = Du har
"He has " = Han har ?
Yes. Jag har, Du har, Han/Hon/Den/Det har, Vi har, De/Dem har. It's like this with all verbs.
I am sure that you have figured this out already but for others: There definitely is verb conjugation in Swedish, so to say there is no conjugation is false.
"Verbs do not inflect for person or number in modern standard Swedish. They inflect for the present tense, past tense, imperative, subjunctive, and indicative mood."
Great! Thank you!
And what's about this?
I am, you are, he/she/it , etc... I just put this word ?-> " är " ?
Like, Du är = you are ..
They're grammatical genders in Swedish, please have a look here: https://forum.duolingo.com/comment/26420394/Answers-to-some-common-questions-on-grammar-that-beginners-have
Pojke means 'boy' , kid can be boy or girl, the word for 'kid' or 'child' in svenska is 'barn'.
Hello! I have a problem here. I had to choose between 'pojke' and 'pojken' in the sentence "_ har en bok". I do not see any implication why "pojke" shouldn't be accepted, is there any?
Indeed you cannot say Pojke har en bok. We don't use nouns in the singular without an article except in very few cases, and this is not one of them. Boy has a book is not a correct English sentence either. You need to say either The boy has a book or A boy has a book.