Kad sam s tobom, osjećam se kao kod kuće.

to be

Breakdown of Kad sam s tobom, osjećam se kao kod kuće.

• s: with
• kad: when
• tobom: you (singular, instrumental)

Questions & Answers about Kad sam s tobom, osjećam se kao kod kuće.

Why is it kad and not kada?

Both kad and kada mean when.

• kad is shorter and very common in everyday speech
• kada is a bit fuller and can sound slightly more formal, careful, or emphatic

So:

• Kad sam s tobom...
• Kada sam s tobom...

Both are correct. In this sentence, kad sounds natural and conversational.

Why does the sentence say sam and not ja sam?

In Croatian, subject pronouns are often omitted when they are already clear from the verb form.

Here, sam means I am, so the I is already understood. Because of that, ja is not necessary.

• Kad sam s tobom... = When I am with you...
• Kad ja sam s tobom... is not correct word order
• Kad sam ja s tobom... is possible, but it adds emphasis, like when I’m with you as opposed to someone else

So the basic, natural version is simply Kad sam s tobom...

Why is it s tobom? What case is tobom?