Tôi không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.

A natural translation is:

I didn’t bring enough cash, but I was still able to pay by card.

Depending on context, it could also be understood as:

• I don’t have enough cash with me, but I can still pay by card.
• I wasn’t carrying enough cash, but I could still pay by card.

Vietnamese often does not mark tense as clearly as English, so the exact time can depend on context.

Here, mang means to carry / to bring with you.

So:

• Tôi không mang đủ tiền mặt = I didn’t bring/carry enough cash
• Tôi không có đủ tiền mặt = I don’t have enough cash

The difference is small but important:

• mang focuses on what you physically have with you
• có focuses more generally on possession

In this sentence, mang is a very natural choice because the speaker is talking about payment in a real situation, such as at a store or restaurant.

In Vietnamese, đủ means enough, and it usually comes before the noun it modifies.

So:

• đủ tiền mặt = enough cash
• đủ tiền = enough money

This is different from English, where enough often comes after adjectives but before nouns:

• enough cash
• big enough

In Vietnamese, đủ works smoothly before nouns in phrases like this.

Tiền mặt means cash.

Literally:

• tiền = money
• mặt here is part of the fixed expression tiền mặt

So tiền mặt is the standard everyday way to say cash in Vietnamese.

Examples:

• Tôi chỉ có tiền mặt. = I only have cash.
• Bạn có nhận tiền mặt không? = Do you accept cash?

Nhưng means but.

Vẫn means still, and it often adds the idea of despite that or nevertheless.

So:

• nhưng = but
• nhưng vẫn = but still / but nevertheless

In this sentence:

• Tôi không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.
• I didn’t bring enough cash, but I was still able to pay by card.

The word vẫn highlights that even though there was a problem, the action was still possible.

Here, được shows ability, possibility, or successful completion.

So:

• thanh toán = to pay / to make payment
• thanh toán được = can pay / was able to pay / managed to pay

In this sentence, được does not mean receive. That is a different use of the same word.

Here it means something like:

• I could pay
• I managed to pay
• payment was possible

Because of vẫn, the phrase gives a strong sense of despite the cash problem, payment still worked out.

Yes, often you can.

• trả bằng thẻ = pay by card
• thanh toán bằng thẻ = pay by card
• thanh toán is a bit more formal or neutral
• trả is more everyday and conversational

So these are both natural:

• Tôi không mang đủ tiền mặt, nhưng vẫn trả bằng thẻ được.
• Tôi không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.

The original sentence sounds a little more polished because of thanh toán.

Bằng means by, with, or using, depending on context.

In this sentence:

• bằng thẻ = by card / using a card

It marks the method or means used to do something.

Examples:

• đi bằng xe buýt = go by bus
• viết bằng bút chì = write with a pencil
• thanh toán bằng tiền mặt = pay in cash
• thanh toán bằng thẻ = pay by card

So bằng is the natural word to introduce the payment method here.

By itself, thẻ just means card, so it can be somewhat general.

In a payment context, bằng thẻ usually means by card, without specifying exactly which kind. If you want to be specific, you can say:

• thẻ tín dụng = credit card
• thẻ ghi nợ = debit card
• thẻ ngân hàng = bank card

So the original sentence leaves the card type unspecified, which is very natural in everyday speech.

Vietnamese often does not mark tense directly, so this sentence can fit different time frames depending on context.

Without extra time words, it could mean:

• I didn’t bring enough cash, but I was still able to pay by card.
• I don’t have enough cash with me, but I can still pay by card.

If you want to make the time clearer, Vietnamese can add words like:

• hôm qua = yesterday
• lúc nãy = just now / earlier
• bây giờ = now

Examples:

• Hôm qua tôi không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.
• Bây giờ tôi không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.

Yes, often it can be omitted if the subject is already clear from context.

For example, in conversation, someone might simply say:

• Không mang đủ tiền mặt, nhưng vẫn thanh toán được bằng thẻ.

This is common in spoken Vietnamese, especially when it is obvious who the speaker is.

However, including Tôi is helpful for learners and makes the sentence clearer and more complete.

The structure is:

• Tôi = subject
• không mang đủ tiền mặt = negative verb phrase
• nhưng = but
• vẫn thanh toán được bằng thẻ = still be able to pay by card

So the full pattern is roughly:

Subject + not + carry + enough cash, but still + pay + able-to + by card

More naturally in English terms:

I + didn’t carry/have enough cash, but still + could pay + by card

A useful thing to notice is that được comes after the verb phrase:

• thanh toán được not
• được thanh toán in this meaning

That post-verb position is very common when được means can / be able to / manage to.

Yes, it is natural and correct.

It sounds clear and fairly neutral. It would fit situations like:

• at a restaurant
• in a shop
• while telling a story
• explaining how a payment situation was solved

If you want a more casual spoken version, you might hear:

• Tôi không mang đủ tiền mặt, nhưng vẫn trả bằng thẻ được.
• Không đủ tiền mặt, nhưng vẫn thanh toán bằng thẻ được.

But the original sentence is absolutely good Vietnamese.