Penggaris kayu itu terselip di antara buku catatan saya, jadi saya tidak menemukannya tadi pagi.

In Indonesian, the main noun usually comes first, and words that describe it come after it.

• penggaris = ruler
• kayu = wood

So penggaris kayu means wooden ruler or literally ruler of wood.

This is a very common pattern:

• meja kayu = wooden table
• rumah besar = big house
• buku baru = new book

So if you are thinking in English order, Indonesian often feels reversed.

Itu here works like that or sometimes the in context. It helps identify a specific ruler: that wooden ruler.

In Indonesian, demonstratives like ini and itu usually come after the noun phrase:

• penggaris itu = that ruler
• penggaris kayu itu = that wooden ruler
• buku merah itu = that red book

So the order is:

noun + description + itu

not the English-style that + noun.

Terselip means something like:

• got stuck
• was tucked
• slipped into/by accident
• ended up lodged somewhere

It suggests that the ruler was accidentally in that position, not that someone deliberately placed it there.

The prefix ter- often gives this kind of meaning: a state, something accidental, or something that happened unintentionally.

For example:

• terjatuh = accidentally fell / fell down
• tertinggal = got left behind
• terbuka = open / got opened

So penggaris kayu itu terselip... gives the sense that the ruler had slipped in between the notebooks.

Indonesian often does not need a verb like to be in the same way English does.

English says:

• The ruler was stuck between...

Indonesian can simply say:

• Penggaris itu terselip di antara...

The word terselip already expresses the state, so no separate was is needed.

This is very normal in Indonesian:

• Dia sakit = He/She is sick
• Buku itu mahal = The book is expensive
• Pintunya terbuka = The door is open

Di antara means between or among.

It is written as two words because di here is a preposition meaning in / at / on, not a prefix.

• di antara buku catatan saya = between my notebooks

This is different from verb forms where di- is a prefix and is attached to the word:

• dibuka = opened
• ditulis = written

A useful rule:

• di + place/location → usually separate

  • di rumah = at home
  • di meja = on the table
  • di antara = between

• di- + verb → attached

  • dibaca = read
  • ditemukan = found

Indonesian noun phrases usually go in this order:

noun + modifier + possessor

So:

• buku = book
• catatan = notes / notebook
• saya = my

Putting them together:

• buku catatan saya = my notebook / my notebooks

More literally, it is notebook(s) of mine.

Similar examples:

• rumah saya = my house
• teman lama saya = my old friend
• mobil baru mereka = their new car

So possession normally comes after the noun, not before it as in English.

It can be either singular or plural, depending on context.

Indonesian often does not mark plural explicitly unless needed. So:

• buku catatan saya can mean my notebook
• or my notebooks

In this sentence, because of the context di antara and the natural meaning, many readers will understand it as between my notebooks.

If someone wanted to make the plural very clear, they could say:

• di antara buku-buku catatan saya

But in everyday Indonesian, leaving it unmarked is very common.

Jadi here means so, therefore, or as a result.

It connects the two parts of the sentence:

1. The ruler was stuck between the notebooks.
2. As a result, I did not find it that morning.

So:

• ..., jadi saya tidak menemukannya tadi pagi.
• ..., so I didn’t find it this morning.

In conversation, jadi is very common for showing a result or conclusion.

Because -nya is a very common way to say him / her / it as an object.

• menemukan = to find
• menemukannya = to find it / find him / find her

So:

• saya tidak menemukannya = I didn’t find it

Using itu here would sound less natural in this sentence. -nya is smoother and more typical when referring back to something already mentioned.

Compare:

• Saya melihat buku itu. = I saw that book.
• Saya melihatnya. = I saw it.

It refers back to penggaris kayu itu — the wooden ruler.

So:

• menemukannya = find it
• the it = the wooden ruler

In Indonesian, -nya can mean:

• him
• her
• it
• sometimes their/his/her, depending on structure

Here it is an object pronoun, and the meaning is clearly it.

The basic root is temu, related to meeting/finding, but Indonesian often adds affixes to make a normal active verb.

• temu = root
• menemukan = to find

The prefix meN- and suffix -kan together form a common verb pattern.

So:

• saya menemukan buku itu = I found that book

In your sentence:

• saya tidak menemukannya = I did not find it

Learners often need to get used to the fact that Indonesian dictionaries may list a root, but actual sentences often use an affixed form.

Tadi pagi means earlier this morning or this morning in reference to a time that has already passed today.

• tadi = earlier / a little while ago
• pagi = morning

Together:

• tadi pagi = this morning / earlier this morning

It tells you that the speaker looked for the ruler in the morning but did not find it then.

You may also hear pagi tadi, which can mean essentially the same thing. Both are used, though tadi pagi is very common.

Indonesian often keeps the subject explicit, especially when starting a new clause.

So:

• Penggaris kayu itu terselip di antara buku catatan saya, jadi saya tidak menemukannya tadi pagi.

The first clause talks about the ruler. The second clause talks about I as the person who could not find it.

Repeating saya makes the sentence clear and natural. Indonesian can sometimes omit subjects when context is obvious, but including them is very normal and often preferable for clarity.