Irregular plural declension (ljudi)

In Croatian, the word for "man" or "person" is čovjek, but its plural is a completely different word: ljudi (people).

CaseForm
Nominativeljudi
Genitiveljudi
Dativeljudima
Accusativeljude
Vocativeljudi
Locativeljudima
Instrumentalljudima

Notice that there are only three distinct forms to learn: ljudi, ljudima, and ljude.

The Base Form: ljudi (Nominative, Genitive, Vocative)

The form ljudi is used as the subject (Nominative), to express quantities (Genitive), and when addressing a group directly (Vocative).

A crowd of people is waiting in front of the theater.
Masa ljudi čeka ispred kazališta.
People, do not judge me!
Ljudi, nemojte meni suditi!

The -ima Form: ljudima (Dative, Locative, Instrumental)

For the Dative (indirect objects), Locative (topics of conversation), and Instrumental (such as being surrounded by or among people) cases, the form is ljudima.

He is surrounded by people, but nobody understands him.
Okružen je ljudima, ali njega nitko ne razumije.
My father likes to be among people.
Moj otac voli biti među ljudima.
Why do you judge people?
Zašto sudiš ljudima?
We are talking about people and the individual.
Razgovaramo o ljudima i pojedincu.

The -e Form: ljude (Accusative)

When "people" is the direct object or the object of certain prepositions (like na), it takes the form ljude.

An individual can influence people.
Pojedinac može utjecati na ljude.