Learn Finnish: Miehellä on lippu ja avain. - The man has a ticket and a key.

Finnish doesn't have a direct verb for "to have". Instead, it uses a structure that literally translates to "on someone is". The -llä ending is the adessive case, meaning "on" or "at". So, miehellä on literally means "on the man is".

The dictionary word for "man" is mies. Why does it change to miehe- before the ending?

Many Finnish words change their core shape (the stem) before endings are attached. For the word mies, the stem changes to miehe-. This is an irregular but very common word, so it's good to memorize this stem change early on!

Why is the ending -llä instead of -lla?

This is due to vowel harmony. If a Finnish word only contains the neutral vowels 'i' and 'e', it usually takes the front vowel endings (the ones with dots, like ä and ö). Since mies only has an 'i' and an 'e', it takes -llä.

Why don't the words lippu and avain have an object ending?

In the Finnish "have" structure, the things that are possessed are actually the grammatical subjects of the sentence. Because they act as the subject ("a ticket and a key are on the man"), they stay in their basic dictionary form without any object endings.