Hindi ako makapasok sa bahay dahil nasa iyo ang susi ko.

Hindi is the general Filipino word for not. It negates statements.

So in Hindi ako makapasok..., hindi negates the idea of being able to enter:

• Makapasok ako = I can get in / I am able to enter
• Hindi ako makapasok = I can’t get in / I’m not able to enter

Filipino often puts hindi at the beginning of the part being negated.

In Filipino, short pronouns like ako often come early in the sentence, especially after particles like hindi.

So the natural order is:

• Hindi ako makapasok

not usually:

• Hindi makapasok ako

This word order is very common:

• Hindi ako alam = I don’t know
• Hindi siya dumating = He/She didn’t arrive
• Hindi kami ready = We’re not ready

So hindi + pronoun + predicate is a pattern you’ll see a lot.

Makapasok means to be able to enter, to get in, or to manage to go inside.

It comes from the root pasok, which is connected with entering or going in.

A helpful way to think about it:

• pasok = enter / go in
• makapasok = can enter / be able to get in

In this sentence, it fits the idea of access:

• Hindi ako makapasok sa bahay = I can’t get into the house

This is an important distinction.

• Pumasok usually means went in / entered or to enter
• Makapasok usually means be able to enter / manage to get in

Compare:

• Pumasok ako sa bahay. = I went into the house.
• Makakapasok ako sa bahay. = I’ll be able to get into the house.
• Hindi ako makapasok sa bahay. = I can’t get into the house.

So makapasok emphasizes ability or possibility, which matches the sentence very well.

Sa bahay means to the house, in the house, or at the house, depending on context. In this sentence, it means into the house or to the house as the place being entered.

• sa is a very common location/direction marker
• bahay = house

So:

• makapasok sa bahay = get into the house

English uses different prepositions like in, into, at, or to, but Filipino often uses sa in many of these situations.

Dahil means because.

In this sentence:

• Hindi ako makapasok sa bahay dahil nasa iyo ang susi ko.
• I can’t get into the house because you have my key.

Yes, the clause order can change. You could also say:

• Dahil nasa iyo ang susi ko, hindi ako makapasok sa bahay.

That means the same thing:

• Because you have my key, I can’t get into the house.

So dahil introduces the reason.

Nasa iyo literally means something like is with you / is at your place / is in your possession, depending on context.

It is made of:

• nasa = at / in / located at
• iyo = you / yours

In this sentence:

• nasa iyo ang susi ko = my key is with you

This is a very natural Filipino way to express possession in some situations. Instead of saying you have my key the way English does, Filipino often phrases it more like my key is with you.

Both iyo and mo are related to you, but they are used differently.

• mo is an unstressed enclitic form
• iyo is a fuller form, often used after prepositions or in more emphasized positions

Here we have:

• nasa iyo

After sa / nasa, the fuller form is used:

• sa iyo = to you / with you / at your place
• nasa iyo = with you / in your possession

You would not normally say:

• nasa mo

So iyo is required by the structure here.

Because ko is a possessive pronoun that normally comes after the noun.

So:

• susi ko = my key
• bahay ko = my house
• kaibigan ko = my friend

This is one of the most basic word order differences from English. English says:

• my key

Filipino usually says:

• key my in literal word-for-word order

So:

• ang susi ko = my key

Ang marks the noun phrase being focused on or identified as the main topic-like element of that part of the sentence.

In:

• nasa iyo ang susi ko

the thing being talked about as being with you is:

• ang susi ko = my key

A rough structural way to read it is:

• With you is my key

So ang marks susi ko as the noun phrase being identified.

You do not always translate ang into English. Often, it has no direct one-word equivalent.

Because Filipino often expresses possession through location-like structures.

English commonly uses:

• You have my key

Filipino very naturally uses:

• Nasa iyo ang susi ko
• literally: My key is with you

Another common Filipino possession pattern uses may:

• May susi ka. = You have a key.

But in this sentence, nasa iyo ang susi ko is especially natural because it emphasizes where the key currently is: with you.

Yes. Here are a few natural alternatives, each with a slightly different feel:

• Hindi ako makapasok sa bahay kasi nasa iyo ang susi ko.

  • kasi is a more conversational way to say because

• Hindi ako makapasok dahil nasa iyo ang susi ko.

  • Same idea, just leaving out sa bahay if the place is already understood

• Hindi ako makapasok sa bahay dahil hawak mo ang susi ko.

  • hawak mo = you are holding / you have in your possession
  • This can sound more concrete, as if you physically have the key

• Dahil nasa iyo ang susi ko, hindi ako makapasok sa bahay.

  • Same meaning, but the reason comes first

So the original sentence is very natural, but it is not the only possible way to say it.

In everyday speech, a very common version would be:

• Hindi ako makapasok sa bahay kasi nasa iyo ang susi ko.

Why?

• kasi is very common in conversation
• It sounds more casual than dahil

So:

• dahil = because, a bit more neutral or formal
• kasi = because, common and conversational

Both are correct.

A simple learner-friendly pronunciation guide would be:

heen-DEE ah-KOH mah-kah-pah-SOK sah BAH-hai dah-HIL nah-sah EE-yoh ahng SOO-see koh

A few notes:

• Hindi = heen-DEE
• ako = ah-KOH
• makapasok = mah-kah-pah-SOK
• bahay = roughly BAH-hai
• dahil = dah-HIL
• iyo = EE-yoh
• susi = SOO-see

Filipino pronunciation is usually more straightforward than English spelling. Each vowel is generally pronounced clearly:

• a as in father
• i as in machine
• o as in more (but shorter and cleaner)

A useful breakdown is:

• Hindi ako makapasok sa bahay = I can’t get into the house

• dahil = because

• nasa iyo ang susi ko = my key is with you / you have my key

So the full structure is:

negative statement + reason

More literally:

• Not I can-enter the house because with-you my key

More natural English:

• I can’t get into the house because you have my key.

This is a great example of how Filipino and English can express the same meaning with different grammar patterns.