Sin - Si - Sitt - Sine
I just have one question about possessive adjectives:
How can you tell the difference between his, hers or theirs when using sin - si - sitt or sine? They all mean his, hers or theirs, but how can you tell which one is being used?
You are talking about the reflexive form which is used when the subject of the sentence owns the object. The form, sin, agrees in gender and number with the owned noun, where sin is the masculine singular form, si the feminine singular, sitt the neuter singular form and sine the plural form.
For example: telefonen sin, mora si, faren sin, huset sitt