Tafadhali tandika mkeka sebuleni, kwa sababu sakafu ni baridi leo.

Tafadhali means please. It makes the command more polite.

In this sentence, Tafadhali tandika mkeka sebuleni is basically Please spread/lay out the mat in the living room.

Unlike English, Swahili often uses tafadhali very simply at the beginning of a request.

Tandika is an imperative verb form, so it is giving a command to one person: spread, lay out, or put down.

With mkeka (mat), tandika mkeka means spread out a mat or lay down a mat.

This is a very natural pairing in Swahili:

• kutandika = to spread out / lay out
• mkeka = mat

So tandika mkeka is more idiomatic than just translating word-for-word as put a mat.

In Swahili, the imperative often does not need an explicit subject. The subject you is understood automatically.

So:

• Tandika mkeka = Lay out the mat
• implied meaning: You, lay out the mat

This is similar to English commands, where we also usually omit you:

• Close the door
• Sit down
• Spread the mat

Mkeka belongs to the m-/mi- noun class in singular/plural pattern:

• singular: mkeka = mat
• plural: mikeka = mats

In this sentence, it appears as a direct object after the verb:

• tandika mkeka = spread the mat

The noun class matters elsewhere in Swahili because adjectives, verbs, and pronouns may agree with the noun. But in this short sentence, you mainly just need to recognize:

• mkeka = one mat
• mikeka = more than one mat

Sebuleni means in the living room.

The ending -ni is a very common locative ending in Swahili. It often adds the idea of in, at, or to a place.

So:

• sebule = living room
• sebuleni = in the living room

This -ni ending is extremely useful:

• nyumba = house
• nyumbani = at home / in the house
• shule = school
• shuleni = at school
• meza = table
• mezani = on the table / at the table

Swahili word order is often quite flexible, but a very common order is:

Verb + object + place

So:

• tandika = spread
• mkeka = the mat
• sebuleni = in the living room

That gives: Tandika mkeka sebuleni = Lay out the mat in the living room

This order sounds natural in Swahili and is similar to English in this case.

Kwa sababu means because.

It introduces a reason:

• Tafadhali tandika mkeka sebuleni, kwa sababu sakafu ni baridi leo.
• Please lay out the mat in the living room, because the floor is cold today.

You can think of kwa sababu as a fixed expression meaning because / for the reason that.

Here, ni works like is in English.

So:

• sakafu = floor
• ni = is
• baridi = cold

Together: sakafu ni baridi = the floor is cold

This is a very common structure in Swahili for linking a noun to a description:

• Maji ni baridi = The water is cold
• Chai ni tamu = The tea is tasty
• Leo ni Jumatatu = Today is Monday

For a learner, the easiest way to understand baridi here is as cold.

In sentences like sakafu ni baridi, it functions like a predicate adjective in English:

• The floor is cold

Swahili does not always divide words into parts of speech in exactly the same way English does, so it is often best to focus on how the word behaves in the sentence.

Useful examples:

• hewa ni baridi = the air is cold
• maji ni baridi = the water is cold

Leo means today.

It appears at the end because time expressions in Swahili can often go at the beginning or the end, depending on emphasis and style.

So these are both possible in principle:

• Sakafu ni baridi leo = The floor is cold today
• Leo sakafu ni baridi = Today the floor is cold

Putting leo at the end is very natural here and keeps the main statement first:

• the floor is cold
• specifically, today

You might see a looser English translation like put the mat in the living room, but spread the mat or lay out the mat is closer to the Swahili.

That is because kutandika usually suggests laying something out flat, especially something like:

• a mat
• bedding
• a cloth

So lay out the mat is the most natural match.

Yes. Mkeka usually means a mat, and depending on context it can refer to different kinds of floor mats or woven mats.

In many contexts, it suggests a mat that is spread on the floor for sitting, kneeling, or covering a cold surface. In this sentence, the idea is clearly that a mat should be put down because the floor is cold.

So the exact type of mat depends on context, but mat is the right general meaning.

As written, it is speaking to one person.

That is because tandika is the singular imperative.

If you were speaking to more than one person, Standard Swahili would typically use:

• Tandikeni mkeka sebuleni... = Lay out the mat in the living room, all of you...

So:

• tandika = command to one person
• tandikeni = command to more than one person

Yes, in some contexts Swahili could use an object marker, but it is not necessary here.

For example, if the mat had already been mentioned and was definite in context, someone might say:

• Tafadhali utandike sebuleni or with clearer context involving the mat, other phrasing might be used.

But the simplest and most direct way is exactly what you have here:

• tandika mkeka sebuleni

For learners, this sentence is a good example of a straightforward imperative: verb + noun object + location

A useful way to learn this sentence is in chunks:

• Tafadhali ... = Please ...
• tandika mkeka = lay out the mat
• sebuleni = in the living room
• kwa sababu = because
• sakafu ni baridi = the floor is cold
• leo = today

So the full pattern is:

Tafadhali + command + place, kwa sababu + statement + time

That gives you a very reusable model for making your own sentences. For example:

• Tafadhali fungua dirisha, kwa sababu chumba kina joto leo.
• Please open the window, because the room is hot today.