Tôi xuất trình thẻ rồi hoàn trả tài liệu.

Yes. Tôi is a common, neutral way to say I in Vietnamese.

A few useful points:

• It is polite and safe in many situations.
• It does not show much relationship or intimacy.
• In real life, Vietnamese often uses kinship-style pronouns instead, depending on age and relationship, such as em, anh, chị, cháu, etc.

So tôi is correct and natural, especially in formal or neutral contexts, but in casual conversation another pronoun might be more common.

Vietnamese does not use articles like English a/an/the.

So:

• thẻ = card / the card / a card
• tài liệu = document / the document / documents / the documents

The exact meaning depends on context.

Also, possession is often left unstated if it is obvious. So thẻ may naturally be understood as my card or the card if the situation makes that clear.

Xuất trình means something like present, produce, or show for inspection.

It is more formal than everyday show.

Common contexts:

• showing an ID
• presenting a passport
• producing a document when requested by staff or authorities

So xuất trình thẻ sounds official or procedural, not casual. In everyday speech, people might use a less formal expression depending on context.

Not necessarily. Thẻ is a general word for a card, especially a card used for identification, access, membership, banking, and so on.

Depending on context, it could mean:

• ID card
• membership card
• access card
• library card
• bank card

If the speaker wants to be more specific, Vietnamese can add another word, for example:

• thẻ căn cước = identity card
• thẻ sinh viên = student card
• thẻ thư viện = library card

So in your sentence, thẻ is broad unless the context narrows it.

Here rồi links two actions and shows sequence: and then / after that.

So the structure is:

• xuất trình thẻ
• rồi
• hoàn trả tài liệu

This gives the sense:

1. first present the card
2. then return the document(s)

Important: in this sentence, rồi is not mainly the English already. Vietnamese rồi can have different uses, and here it is functioning as a connector showing one action happens after another.

No. Vietnamese does not mark tense the way English does.

Rồi here mainly shows sequence, not necessarily past time.

The sentence could describe:

• something happening now
• a routine procedure
• a past action
• an instruction-like sequence

Time is usually understood from context or from extra time words such as:

• hôm qua = yesterday
• bây giờ = now
• ngày mai = tomorrow

So you should not automatically translate rồi as a past-tense marker.

Hoàn trả is more formal than trả.

• trả = return, give back, pay
• hoàn trả = return formally, restore, hand back in an official or procedural sense

In your sentence, hoàn trả tài liệu sounds bureaucratic, institutional, or written.

Examples of tone:

• trả sách = return the book(s) — normal everyday speech
• hoàn trả tài liệu = return the document(s) — more official/formal

So the sentence overall sounds quite formal because of both xuất trình and hoàn trả.

Vietnamese nouns often do not show singular/plural the way English nouns do.

So tài liệu can mean:

• a document
• the document
• documents
• the documents
• sometimes even materials or documentation, depending on context

If Vietnamese wants to be more explicit, it can add quantity words such as:

• một tài liệu = one document
• những tài liệu = documents
• các tài liệu = the documents / documents in general

Without those markers, the number is left to context.

Yes. The basic order is very typical:

• Tôi = subject
• xuất trình thẻ = verb + object
• rồi
• hoàn trả tài liệu = verb + object

So it is basically:

Subject + Verb + Object + rồi + Verb + Object

This is a very natural way to list actions in order.

Yes, in the right context.

Vietnamese often omits subjects when they are already clear from the situation.

For example, if it is obvious who is acting, someone might simply say:

• Xuất trình thẻ rồi hoàn trả tài liệu.

That could sound like:

• a note
• an instruction
• a procedural step

But when you include tôi, it clearly means the speaker is the one doing the actions.

It sounds fairly formal, even somewhat administrative.

That feeling comes mainly from:

• xuất trình rather than a more everyday verb
• hoàn trả rather than plain trả
• tài liệu, which is also a formal-ish noun

It sounds like something you might hear or read in:

• an office
• a library procedure
• an official process
• a report
• a formal statement

It is less like relaxed everyday conversation.

Yes, but the meaning shifts slightly.

• rồi = and then / after that, with a clear sense of sequence
• và = and, a more neutral connector

So:

• Tôi xuất trình thẻ rồi hoàn trả tài liệu.
  = I present the card, then return the document(s).

• Tôi xuất trình thẻ và hoàn trả tài liệu.
  = I present the card and return the document(s).

The version with rồi emphasizes order more clearly.

A learner will especially want to notice the tones:

• tôi — level tone on tôi
• xuất — sắc tone
• trình — huyền tone
• thẻ — hỏi tone
• rồi — huyền tone
• hoàn — huyền tone
• trả — hỏi tone
• tài — huyền tone
• liệu — nặng-like falling stop on the second syllable

A few pronunciation tips:

• xuất trình may be tricky because of the consonant cluster and final consonant in xuất.
• thẻ and trả both use the hỏi tone in standard spelling.
• liệu is two vowels working together, so listen carefully to native audio if possible.

If you want to sound natural, it helps to practice the sentence in chunks:

• Tôi xuất trình thẻ
• rồi hoàn trả tài liệu

That makes the rhythm easier.