Am uitat portofelul meu acasă.

Am is the auxiliary verb used to form the common Romanian past tense called perfectul compus.

So:

• am = I have (auxiliary)
• uitat = forgotten / past participle of a uita

Together, am uitat means I forgot or I have forgotten.

Even though Romanian uses the equivalent of have, in English we usually translate it here as the simple past: I forgot.

Romanian often leaves out subject pronouns because the verb already shows who is doing the action.

• am clearly means I have
• so eu is not necessary

That makes Am uitat... perfectly natural.

You can add eu for emphasis, contrast, or clarity:

• Eu am uitat portofelul meu acasă, nu el. = I forgot my wallet at home, not him.

Uitat is the past participle of the verb a uita (to forget).

In am uitat, it combines with the auxiliary am to make the past tense.

So the structure is:

• a uita = infinitive, to forget
• uitat = past participle, forgotten
• am uitat = I forgot

Because Romanian usually attaches the definite article to the end of the noun.

So:

• portofel = wallet
• portofelul = the wallet

In this sentence, the speaker means a specific wallet: my wallet, so the definite form is used.

This is a very common Romanian pattern:

• carte = book
• cartea = the book
• telefon = phone
• telefonul = the phone

Yes, and that is normal in Romanian.

Romanian often expresses possession with:

• a definite noun
• plus a possessive adjective

So:

• portofelul meu = my wallet
• literally: the wallet my

This is one of the things that feels unusual to English speakers at first, but it is the standard Romanian way.

Other examples:

• cartea mea = my book
• câinele meu = my dog

Because the possessive adjective has to agree with the noun.

Portofel is a masculine/neuter singular noun in form, so it takes meu in the singular.

Compare:

• portofelul meu = my wallet
• cartea mea = my book

So:

• meu is used with masculine/neuter singular nouns
• mea is used with feminine singular nouns

In Romanian, possessive adjectives usually come after the noun, especially in the normal pattern with the definite article:

• portofelul meu
• cartea mea
• prietenul meu

That is the standard, natural order.

Putting the possessive before the noun is much less common and usually sounds literary, emphatic, or stylistically marked in many contexts.

So for a learner, noun + definite article + possessive is the safest pattern to remember.

Acasă means at home or sometimes home, depending on context.

It is an adverb, so it does not need a preposition here.

That is why Romanian says:

• acasă = at home / home

not something like la acasă or în acasă.

Examples:

• Sunt acasă. = I am at home.
• Merg acasă. = I’m going home.
• Am uitat portofelul meu acasă. = I forgot my wallet at home / I left my wallet at home.

It can suggest both, depending on context.

The verb a uita basically means to forget, but in sentences like this, Romanian often uses it where English would naturally say leave behind.

So:

• Am uitat portofelul meu acasă.

can mean:

• I forgot my wallet at home
• I left my wallet at home

In natural English, I left my wallet at home is often the smoother translation.

The given word order is natural, but Romanian word order is fairly flexible.

The neutral version is:

• Am uitat portofelul meu acasă.

But other orders are possible for emphasis, such as putting acasă earlier if you want to stress the location.

Even so, for learners, the original order is the best one to use first: verb + object + place

Yes. That is also very common.

Mi-am uitat portofelul acasă literally includes a dative pronoun meaning something like for myself / on me, but in real usage it often just sounds natural when talking about something belonging to you.

So both are possible:

• Am uitat portofelul meu acasă.
• Mi-am uitat portofelul acasă.

The second version is often very idiomatic in everyday speech.

Because Romanian builds possession differently from English.

English uses:

• my wallet

Romanian usually uses:

• the wallet + my
• portofelul meu

So instead of placing a possessive word before the noun, Romanian typically:

1. makes the noun definite
2. adds the possessive after it

That pattern is extremely common and worth getting used to early.

It is in the perfectul compus, the most common past tense in everyday Romanian.

Structure:

• am = auxiliary
• uitat = past participle

This tense is used very often in spoken Romanian to talk about completed past actions.

So if you want to say things like:

• I forgot
• I went
• I saw

you will very often use this same pattern in Romanian.