Kamu bisa datang kapan saja ke rumah saya.

Kamu means you (singular), but it is informal. It is common with friends, family, people younger than you, or people you are close to.

It is not the best choice in every situation. For example:

• Anda = more formal/polite
• using a name or title can also sound more natural in some situations

So this sentence sounds friendly and casual.

Here, bisa means can or are able/free to.

In this sentence, it gives the idea:

• You can come...
• You’re welcome to come...
• You may come... in a friendly sense

So it is not only about physical ability. In context, it often sounds like an invitation or permission.

Datang means come, while pergi means go.

Indonesian uses datang here because the movement is toward the speaker’s place: ke rumah saya = to my house. English works the same way:

• toward me/my place → come
• away from me → go

So Kamu bisa datang ke rumah saya is naturally You can come to my house.

Kapan means when, and saja often adds the idea of any, just, or at all depending on context.

Together, kapan saja means:

• anytime
• whenever

So Kamu bisa datang kapan saja... means You can come anytime...

Ke is a preposition that means to when talking about movement toward a place.

So:

• ke rumah saya = to my house
• ke sekolah = to school
• ke Jakarta = to Jakarta

A useful comparison:

• ke = to
• di = at/in
• dari = from

So ke rumah saya is correct because the sentence involves movement toward the house.

In Indonesian, possession usually works as:

noun + possessor

So:

• rumah saya = my house
• buku saya = my book
• teman saya = my friend

This is different from English, where my comes before the noun. Indonesian usually puts the possessor after the noun.

Here, saya means my because it comes after a noun: rumah saya.

The word saya can mean:

• I when it is the subject
• my when it follows a noun

Examples:

• Saya datang. = I am coming / I come.
• rumah saya = my house

So the function depends on where it appears in the sentence.

Indonesian verbs do not usually change form for tense the way English verbs do.

So datang does not change like:

• come
• came
• will come

Instead, time is understood from:

• context
• time words such as sekarang (now), besok (tomorrow), nanti (later)

In this sentence, the natural meaning is usually present/future:

• You can come anytime to my house
• more naturally in English: You can come to my house anytime

Yes. Indonesian word order is fairly flexible, especially with time expressions.

This sentence:

• Kamu bisa datang kapan saja ke rumah saya.

can also be:

• Kamu bisa datang ke rumah saya kapan saja.

Both are natural. The meaning stays basically the same. The difference is mostly about emphasis or rhythm.

Yes, Indonesian often omits subjects if they are clear from context.

So in conversation, someone might say:

• Bisa datang kapan saja ke rumah saya.

This still means You can come to my house anytime, as long as it is obvious who is being addressed.

Including kamu makes the sentence clearer and more complete.

Yes, but the nuance changes slightly.

• bisa = can, are able to, can feel like a friendly invitation
• boleh = may, are allowed to, permission is more explicit

So:

• Kamu bisa datang kapan saja ke rumah saya. = You can come anytime to my house.
• Kamu boleh datang kapan saja ke rumah saya. = You may come anytime to my house.

Both can work, but bisa often sounds a little more natural in a casual invitation.

It is mostly informal to neutral-casual.

Why:

• kamu is informal
• saya is polite/neutral for I/my

This mix is normal in Indonesian. A speaker can refer to themselves as saya while addressing someone as kamu.

So the overall tone is:

• friendly
• natural
• not very formal

A more formal version would usually replace kamu with Anda:

• Anda bisa datang kapan saja ke rumah saya.