Tạm dùng modem này.

Tạm means temporarily, for now, or in the meantime.

In Tạm dùng modem này, it tells you that using this modem is not meant to be permanent. A natural English idea is Use this modem for now.

It is often used before a verb:

• tạm nghỉ = rest for now
• tạm dùng = use for now
• tạm hoãn = postpone for now / temporarily suspend

Yes. Dùng is the main verb here, and it means to use.

So the basic structure is:

• tạm = temporarily / for now
• dùng = use
• modem này = this modem

Together: temporarily use this modem / use this modem for now.

In everyday Vietnamese, dùng is a common and fairly neutral word for use.

Vietnamese often leaves out the subject when it is obvious from context.

So Tạm dùng modem này could mean different things depending on the situation:

• Use this modem for now.
• Let’s use this modem for now.
• I’ll use this modem for now.

English usually needs a subject, but Vietnamese often does not. This is very normal, especially in conversation, instructions, or short messages.

In Vietnamese, demonstratives like này usually come after the noun.

So:

• modem này = this modem
• cái bàn này = this table
• người này = this person

This is the normal Vietnamese word order:

• noun + này = this + noun
• noun + đó/kia = that + noun

So modem này is exactly the expected pattern.

Yes. Modem is a loanword from English and is commonly used in Vietnamese.

In speech, many speakers pronounce it in a Vietnamese way, often something like mô-đem, but in writing you will very often see modem.

This is common in modern Vietnamese, especially for technology words:

• modem
• wifi
• laptop
• router

So this part of the sentence is quite straightforward for an English speaker.

Usually, yes, it most naturally sounds like an instruction or suggestion: Use this modem for now.

But because Vietnamese often omits subjects and other markers, the exact force depends on context and tone. It could be:

• a direct instruction
• a practical suggestion
• a quick decision

If you want to make it softer, Vietnamese often adds particles such as nhé:

• Tạm dùng modem này nhé. = Let’s use this modem for now, okay? / Please use this modem for now.

Without a particle, the sentence is shorter and more matter-of-fact.

Yes, you could. Tạm thời also means temporarily.

Compare:

• Tạm dùng modem này. = shorter, more natural in quick speech
• Tạm thời dùng modem này. = a bit fuller, slightly more explicit

In everyday conversation, tạm by itself is very common and natural. So the original sentence sounds normal.

Yes, in many contexts.

For example:

• Tạm dùng modem này.
• Tạm xài modem này.

Both can mean Use this modem for now.

But there is a slight difference in tone:

• dùng = more neutral, standard
• xài = more informal/colloquial, especially common in southern speech

For learners, dùng is usually the safer all-purpose choice.

Classifiers are common in Vietnamese, but they are not always required in every structure.

With a concrete object, you may hear:

• cái modem này = this modem

But in casual speech, especially with modern objects or tech items, people often just say:

• modem này

So Tạm dùng modem này is perfectly natural. Adding cái would also be possible:

• Tạm dùng cái modem này.

That version can sound a little more conversational or slightly more pointed, depending on context.

A useful way to see it is:

tạm + verb + noun phrase

So here:

• tạm = for now
• dùng = use
• modem này = this modem

Pattern:

• Tạm ăn cái này. = Eat this for now.
• Tạm ở đây. = Stay here for now.
• Tạm dùng modem này. = Use this modem for now.

This is a very common and practical Vietnamese pattern.