Després de rentar la roba a la rentadora, la posem a la secadora perquè plou.

In Catalan, després de means after, and it is normally followed by an infinitive when the subject stays the same.

So:

• després de + infinitive = after doing something

Examples:

• Després de menjar = after eating
• Després de treballar = after working
• Després de rentar la roba = after washing the clothes

This is very natural in Catalan and works a lot like after + -ing in English.

Because after després de, Catalan usually uses the infinitive, not a fully conjugated verb.

So:

• Després de rentar la roba... = After washing the clothes...
• not Després de rentem...

English often uses after washing, while Catalan uses després de + infinitive.

This is a very common learner question. In Catalan, roba is usually a singular collective noun meaning clothes or clothing.

So even though English says clothes in the plural, Catalan often says:

• la roba = the clothes / the clothing

Because roba is grammatically singular, later in the sentence it is replaced by the singular pronoun la:

• la posem = we put it / we put the clothes

So the grammar follows the Catalan word, not the English meaning.

These three words look similar, so they can be confusing:

• roba = clothes
• rentadora = washing machine
• secadora = dryer / tumble dryer

A useful pattern is:

• rentar = to wash
• rentadora = washing machine
• secar = to dry
• secadora = dryer

So:

• rentar la roba = to wash the clothes
• a la rentadora = in the washing machine
• a la secadora = in the dryer

Because Catalan often uses a direct object pronoun before the verb when the object has already been mentioned.

Here:

• la roba = the clothes
• la = it / the clothes

So:

• la posem literally = we put it
• natural English = we put them or we put the clothes

Catalan prefers the clitic pronoun before the conjugated verb:

• la posem
• el veig
• les comprem

You could also say posem la roba a la secadora, but once la roba has already been introduced, la posem is very natural.

Because the pronoun agrees with the Catalan noun roba, not with the English translation.

Since:

• roba is singular
• feminine singular pronoun = la

So:

• la roba → la

Even though English translates this as clothes and uses them, Catalan treats roba as singular and says la.

Here a is used to indicate where something is put. In this kind of context, Catalan commonly uses posar alguna cosa a + place/container/machine.

So:

• posar la roba a la rentadora = put the clothes in the washing machine
• posar la roba a la secadora = put the clothes in the dryer

Even though English often says in, Catalan frequently uses a in these expressions.

Posem is the 1st person plural present tense of posar:

• jo poso = I put
• tu poses = you put
• ell/ella posa = he/she puts
• nosaltres posem = we put

So la posem means we put it or we put the clothes.

In this sentence, the present tense can sound like a general routine or what we do in this situation:

• After washing the clothes, we put them in the dryer because it’s raining.

Perquè with an accent usually means because.

So:

• perquè plou = because it’s raining

This is one of several similar-looking forms in Catalan:

• perquè = because / so that
• per què = why / for what reason
• per a què = what for / for what purpose

In this sentence, it clearly means because, so perquè is the correct form.

Catalan does not normally use a dummy subject like English it in weather expressions.

So:

• plou = it’s raining
• neva = it’s snowing
• fa fred = it’s cold

English needs it in it’s raining, but Catalan simply says plou.

The opening part:

• Després de rentar la roba a la rentadora

is an introductory time phrase: After washing the clothes in the washing machine.

It is followed by the main clause:

• la posem a la secadora perquè plou

The comma helps separate the introductory phrase from the main clause. It works much like English punctuation in:

• After washing the clothes, we put them in the dryer...

Yes, that would be grammatically correct, but it sounds more repetitive.

Catalan usually avoids repeating a noun when a pronoun can replace it naturally. So:

• posem la roba a la secadora = correct
• la posem a la secadora = more natural after la roba has already been mentioned

Using the pronoun makes the sentence flow better.

It can be understood either way, depending on context, but the present tense often suggests a general or habitual action:

• When it rains, after washing the clothes, we put them in the dryer.

If you wanted to make it clearly about a past event, you would change the verbs:

• Després de rentar la roba a la rentadora, la vam posar a la secadora perquè plovia.

So the original sentence most naturally sounds like a routine or a present-time statement.