Wakulima wanaanza kupalilia mapema, kwa sababu palizi huchukua muda mwingi.

Swahili normally does not use articles like the, a, or an.

So Wakulima can mean:

• farmers
• the farmers
• sometimes some farmers

The exact English choice depends on context. That is very normal in Swahili.

Wakulima is the plural of mkulima, meaning farmer.

It follows the common m-/wa- pattern for people:

• mkulima = farmer
• wakulima = farmers

This is noun class 1/2, which is often used for human beings.

Wanaanza can be broken into:

• wa- = they
• -na- = present tense / ongoing present
• anza = begin, start

So wanaanza means they are starting or they start, depending on context.

Because the subject is wakulima (farmers), the verb uses the plural human subject prefix wa-.

After kuanza (to begin/start), Swahili commonly uses the infinitive of the next verb.

So:

• kuanza = to begin
• kupalilia = to weed

Together, wanaanza kupalilia means they begin to weed or they start weeding.

The ku- here marks the infinitive, similar to English to in to weed.

They are related, but they are not the same form.

• kupalilia = to weed, the verb in infinitive form
• palizi = weeding, the activity as a noun

So in the sentence:

• wanaanza kupalilia = they start to weed
• palizi huchukua muda mwingi = weeding takes a lot of time

English can also switch between to weed and weeding, and Swahili is doing something similar here.

Mapema means early.

In this sentence, it tells us when the farmers start weeding:

• wanaanza kupalilia mapema = they start weeding early

Swahili adverbs like mapema often come after the verb phrase, so this placement is very natural.

Kwa sababu means because.

It introduces the reason for the first clause:

• Wakulima wanaanza kupalilia mapema = Farmers start weeding early
• kwa sababu palizi huchukua muda mwingi = because weeding takes a lot of time

Literally, kwa sababu is something like for the reason/cause, but in normal English it is best translated as because.

Huchukua uses the hu- form, which often expresses a habitual, general, or usual action.

So:

• palizi huchukua muda mwingi = weeding takes a lot of time / weeding usually takes a lot of time

This sounds like a general truth, not just one specific moment.

If you said inachukua, that would more likely point to a specific instance or an action viewed more directly in time, such as it is taking or it takes in a more immediate sense.

So huchukua fits well because the speaker is stating a general fact about weeding.

The verb root -chukua literally means take.

So huchukua muda mwingi literally means:

• it takes much time

This works just like English:

• The job takes a lot of time
• Weeding takes a lot of time

So the meaning is very natural:

• palizi huchukua muda mwingi = weeding takes a lot of time

This is about noun class agreement.

Muda is treated as a singular noun in this expression, so the adjective -ingi agrees with it as mwingi.

So:

• muda mwingi = a lot of time / much time

Even though English learners may expect something like many, Swahili is using the equivalent of much here, because time is being treated as something uncountable.

So muda mwingi is the correct phrase.

It can suggest a general practice rather than one single event.

That feeling comes from two things:

• wanaanza can mean they start or they are starting, depending on context
• huchukua strongly suggests a general truth or usual situation

So the sentence most naturally reads like:

• Farmers start weeding early, because weeding takes a lot of time

That sounds like a general statement about farming, not just a report about one particular day.