The most important thing to know about pronouns in Estonian languageis that there are no equivalents for 'he', 'she' and 'it'. If the sentence concerns a person, who is not me or you, we use the term 'ta' or 'tema'. So you can imagine suspension when someone speaks of 'tema' without giving any clues about the gender. Frustrating, for sure!

Another potential area of frustration could be that for 'you' we have two different words. Yet it is nothing unheard of and it is very logical as well. The rule here is that 'sa' or 'sina' means one person. 'Te' or 'teie' is used to address a group of people.

Similarly to Russian, German or French, plural 'you' may be used to address a person in some formal situations. The rule of thumb used to be that person older, unfamiliar or in higher status should be addressed by using 'teie'. As relationship gets closer, people would agree on using more informal 'sina'. I guess it would serve as a clue how close people are!  While the younger generation finds it deliberating not to follow this old and somewhat standoffish rule,  the older generation still observes it.

As in the examples above, Estonian pronouns have two versions - a long one (actually it is very short compared to how long Estonian words could be otherwise!) as well as a short contracted one. Usually the long ones are used for emphasis.

Later on you would see that the pronouns are matched up with the verb forms. 

With possessive adjectives I would like to mention that differently from the other Estonian adjectives, these have only singural forms.

Click, to isten to the long possessive pronouns