Learn Swedish: Min vän och jag har stöttat varandra. - My friend and I have supported each other.

The word varandra means 'each other' or 'one another'. It is used as the object of the sentence to show that the action is mutual. It never changes its spelling based on who the subject is, so whether it is 'we', 'you', or 'they' supporting each other, it is always varandra.

What is the base form of the verb stöttat?

The base form (infinitive) is stötta, which means 'to support' or 'to back someone up'. It is a Group 1 verb, which is why its 'supine' form used after har ends in -at, becoming stöttat.

Is there a difference between stötta and the similar verb stödja?

Yes, although both mean 'to support'. Stötta is most often used for emotional or moral support, which perfectly fits friends helping each other. Stödja (or stöda) is typically used for financial, political, or physical support.

In English, we say 'My friend and I' to be polite. Does Swedish have the same rule for min vän och jag?

Swedish does have this same polite order, but native speakers are much less strict about it than in English. You will very commonly hear Swedes say jag och min vän ('I and my friend') in casual speech, and it does not sound uneducated or wrong.