Tengo tiempo para revisar la factura.

In Spanish, tener means to have, so tengo tiempo literally means I have time.

• tengo = I have
• soy = I am from ser
• estoy = I am from estar

So if you want to say that you possess or have available time, you use tener, not ser or estar.

Spanish often leaves out subject pronouns when they are clear from the verb form.

• tengo already tells you the subject is I
• So (yo) tengo tiempo and tengo tiempo both mean I have time

Including yo is possible, but it usually adds emphasis, contrast, or clarity:

• Yo tengo tiempo, pero ella no. = I have time, but she doesn’t.

In a normal sentence, leaving out yo sounds natural.

Tengo is the first person singular present tense form of tener.

That means it translates as:

• I have
• sometimes I do have, depending on emphasis

In this sentence, it refers to the present situation: I have time now / at the moment / available.

Para is used here to express purpose or what the time is for.

So:

• Tengo tiempo para revisar la factura.
• literally: I have time for reviewing the bill/invoice
• natural meaning: I have time to review the bill/invoice

A very common pattern in Spanish is:

• tener tiempo para + infinitive
• to have time to + verb

Examples:

• Tengo tiempo para comer. = I have time to eat.
• No tengo tiempo para llamar. = I don’t have time to call.

After para, when you are talking about an action in general and not a fully conjugated clause, Spanish often uses the infinitive.

So:

• para revisar = to review

This works like English to + verb in many cases.

Compare:

• Tengo tiempo para revisar la factura. = I have time to review the invoice.

If you used a conjugated verb after para, you would usually need a full clause, often with que:

• Tengo tiempo para que revises la factura. = I have time so that you can review the invoice.

That has a different meaning and structure.

Usually, yes, but revisar can cover several related ideas depending on context:

• to review
• to check
• to inspect
• to look over

With la factura, it often means something like:

• review the invoice
• check the bill
• look over the invoice

So the exact English word depends on context, but review is a very good basic translation.

Factura often means invoice, but in some contexts it can also be translated as bill.

Common tendencies:

• in business/accounting contexts, factura = invoice
• in some everyday situations, it may be understood as bill

A native speaker would choose the best English word based on the situation, but the Spanish word itself is perfectly normal here.

Spanish uses definite articles like el, la, los, las more often than English does.

So Spanish commonly says:

• revisar la factura

where English might say:

• review the invoice
• or sometimes just review an invoice, depending on context

In this sentence, la factura sounds natural because it usually refers to a specific invoice/bill that both speaker and listener understand from context.

This is a very standard Spanish structure:

• Tengo = verb
• tiempo = noun/object
• para revisar la factura = phrase explaining the purpose

So the sentence is built like:

• I have time
  • to review the invoice

Spanish word order is often similar to English here. You could rearrange parts for emphasis in some contexts, but this order is the most neutral and natural.

In many regions, tener tiempo para + infinitive is the most straightforward and widely taught pattern for to have time to do something.

Tener tiempo de + infinitive may appear in some varieties or contexts, but para is the safer and more standard choice for most learners here.

So for a Latin American learner target, Tengo tiempo para revisar la factura is an excellent sentence to use.

Normally, no. In this sentence, tiempo is treated as an uncountable noun, like time in English.

So you say:

• Tengo tiempo. = I have time.

Not:

• Tengo tiempos for this meaning

Tiempos exists, but it usually means times, periods, or tenses, depending on context:

• los tiempos verbales = verb tenses

It is similar, but more formal.

• Tengo tiempo para revisar la factura. = normal, everyday, natural
• Dispongo de tiempo para revisar la factura. = more formal or official-sounding

A learner should usually prefer tengo tiempo in ordinary conversation.

You put no before the verb:

• No tengo tiempo para revisar la factura.
• I don’t have time to review the invoice.

This is the normal way to negate a sentence in Spanish.

Yes. Since la factura is a direct object and feminine singular, you can replace it with la.

So:

• Tengo tiempo para revisar la factura. becomes
• Tengo tiempo para revisarla.

Notice that when the object pronoun is attached to an infinitive, it goes at the end:

• revisar + la = revisarla

Both versions are correct:

• Tengo tiempo para revisar la factura.
• Tengo tiempo para revisarla.

Because the subject of revisar is the same as the subject of tengo: I.

Spanish usually uses:

• para + infinitive when the same person does both actions

Here:

• I have time
• I review the invoice

So:

• Tengo tiempo para revisar la factura.

But if the subject changes, Spanish often uses:

• para que + subjunctive

Example:

• Tengo tiempo para que revises la factura.
• I have time for you to review the invoice / I have time so that you can review the invoice.

So the original sentence has no que because no subject change is needed.