الغرفة نظيفة بالكامل.

In Arabic, present-tense sentences like this usually do not use a separate word for is.

So:

• الغرفة نظيفة = The room is clean

This is called a nominal sentence: it has a subject and a predicate, but no present-tense copula (is / are / am).

If you wanted a past-tense version, then Arabic would use a verb such as كانت:

• كانت الغرفة نظيفة = The room was clean

It is a nominal sentence in Modern Standard Arabic.

Its main parts are:

• الغرفة = the subject/topic
• نظيفة = the predicate, describing the subject
• بالكامل = an adverbial expression meaning completely / entirely

So the structure is basically:

• [subject] + [predicate] + [adverbial phrase]

Arabic normally puts the thing being talked about first, then the description.

So:

• الغرفة نظيفة literally follows the pattern the room clean

This feels unusual to English speakers because English requires is in the middle:

• The room is clean

Also, Arabic adjectives usually come after the noun they describe, so this word order is very natural in Arabic.

Because الغرفة is a feminine noun.

In Arabic, adjectives must agree with the noun in:

• gender
• number
• definiteness (when they are true attributive adjectives)

Since غرفة is feminine singular, the matching form is:

• masculine: نظيف
• feminine: نظيفة

So الغرفة نظيفة uses the feminine adjective correctly.

Because نظيفة here is not an attributive adjective inside a noun phrase. It is the predicate of the sentence.

Compare these two:

• الغرفة نظيفة = The room is clean
• الغرفة النظيفة = the clean room

This is a very important difference.

1. Predicative use:

   • الغرفة نظيفة
   • The noun is definite, but the predicate is usually indefinite.

2. Attributive use:

   • الغرفة النظيفة
   • Both noun and adjective are definite, because together they form the clean room.

So the absence of الـ on نظيفة tells you this is a full sentence, not just a noun phrase.

بالكامل means completely, entirely, or in full.

It is made from:

• بـ = a preposition, often with / in / by
• الكامل = the complete / the whole

So literally it is something like in full or in its entirety, but in natural English here it means:

• completely
• entirely

So:

• الغرفة نظيفة بالكامل = The room is completely clean

Because short prepositions such as بـ attach directly to the following word in Arabic spelling.

So:

• بـ + الكامل becomes بالكامل

This is very common in Arabic. Other examples:

• بالبيت = in the house
• باللغة العربية = in Arabic / in the Arabic language

So even though it contains two parts, it is written as one unit.

In careful formal Arabic, it would be read approximately as:

• al-ghurfatu naẓīfatun bil-kāmili

Breakdown:

• الغرفةُ = al-ghurfatu
• نظيفةٌ = naẓīfatun
• بالكاملِ = bil-kāmili

In normal pause at the end of the sentence, the final short vowel is usually not pronounced, so the last word is often heard more like:

• bil-kāmil

And in less formal speech, many case endings are dropped altogether.

If you add full case endings, they are:

• الغرفةُ — nominative
• نظيفةٌ — nominative
• بالكاملِ — genitive after the preposition بـ

Why?

• الغرفةُ is the subject of a nominal sentence, so it is nominative.
• نظيفةٌ is the predicate of that nominal sentence, and it is also nominative.
• In بالكاملِ, the preposition بـ makes the following noun/adjective genitive.

So the fully vocalized form is:

• الغرفةُ نظيفةٌ بالكاملِ

They are very different grammatically.

• الغرفة نظيفة بالكامل = The room is completely clean

  • This is a full sentence.

• الغرفة النظيفة بالكامل = the completely clean room

  • This is a noun phrase, not a full sentence by itself.

In the second one, النظيفة has الـ, so it is clearly an adjective attached to الغرفة.

This is one of the most useful contrasts for learners:

• definite noun + indefinite predicate = sentence
• definite noun + definite adjective = noun phrase

Yes, but the meaning changes slightly.

• الغرفة نظيفة جدًا = The room is very clean
• الغرفة نظيفة بالكامل = The room is completely clean

So:

• جدًا expresses degree: very
• بالكامل expresses completeness: completely / entirely

They are related, but not identical.

Yes, especially these:

• غ in الغرفة
• ظ in نظيفة

A rough guide:

• غ is a throaty sound, somewhat like the French or German r
• ظ is an emphatic consonant, often taught roughly as a dark z sound

Also note the ة at the end of غرفة and نظيفة:

• in pause, it usually sounds like -a
• with full grammatical endings, it is pronounced with a t sound before the ending

So:

• in pause: ghurfa, naẓīfa
• with endings: ghurfatu, naẓīfatun

That letter is called taa marbuuTa (ة).

It often marks feminine nouns and adjectives. In this sentence:

• غرفة is a feminine noun
• نظيفة is a feminine adjective/predicate

For learners, it helps to remember:

• written as ة
• often pronounced -a when stopping
• pronounced with t when grammatical endings are heard

So the feminine connection between غرفة and نظيفة is visible in the spelling as well.