Questions & Answers about Sklonio sam stolicu.
This is because sam is an unstressed clitic.
In Serbian past tense, you use:
- the l-participle: sklonio
- plus a present-tense form of biti: sam
Clitics usually go in second position in the clause, so after the first stressed element. In Sklonio sam stolicu, the first element is sklonio, so sam comes right after it.
You can also say:
- Ja sam sklonio stolicu. = I moved the chair.
- Stolicu sam sklonio. = It was the chair that I moved.
But sam normally does not stand freely at the beginning by itself.
Serbian often leaves out subject pronouns when they are already clear from the verb form.
In Sklonio sam stolicu, sam tells you this is first person singular, so I is already understood.
So:
- Sklonio sam stolicu. = I moved/removed the chair.
- Ja sam sklonio stolicu. = I moved the chair.
Adding ja is possible, but it usually gives extra emphasis, contrast, or clarity.