الكفاءة مهمة.

In Arabic, the present tense of to be is usually not stated.

So الكفاءة مهمة literally looks like the competence important, but it means Competence is important or Efficiency is important.

This kind of sentence is called a nominal sentence.

• الكفاءة = the topic / subject
• مهمة = the comment / predicate

If you wanted to say was important or will be important, Arabic would use extra words or a verb:

• كانت الكفاءة مهمة = Competence was important
• ستكون الكفاءة مهمة = Competence will be important

الـ is the Arabic definite article, like the.

However, Arabic often uses the definite form when talking about something in a general sense. So:

• الكفاءة مهمة can mean Competence is important
• It does not have to mean one specific competence already known in context

This is very common in Arabic when speaking about general concepts, qualities, or categories.

In الكفاءة مهمة:

• الكفاءة is the subject of the sentence
• مهمة is the predicate that describes it

A more grammar-based explanation:

• الكفاءة = المبتدأ
• مهمة = الخبر

So the structure is:

[subject] + [description/comment]

This is one of the most basic sentence patterns in Arabic.

Because الكفاءة is grammatically feminine, and the predicate adjective must agree with it.

The word الكفاءة ends in ة and is treated as feminine, so the adjective must also be feminine:

• masculine: مهم
• feminine: مهمة

So Arabic agrees in gender here, even though competence is not biologically female. This is purely grammatical gender.

Here, مهمة is best understood as an adjective meaning important.

It is functioning as the predicate of the sentence, so it describes الكفاءة:

• الكفاءة مهمة = Competence is important

Be careful, though: مهمة can also be a noun in other contexts, meaning task or mission.
For example:

• هذه مهمة صعبة = This is a difficult task

So context matters. In your sentence, it means important, not task.

A careful full pronunciation is:

al-kafāʾatu muhimmatun

In normal pause pronunciation, it is usually said more like:

al-kafāʾa muhimma

A few notes:

• الكفاءة contains a hamza: كفاءة
• the final ة is pronounced like -a when stopping
• مهمة has a doubled m sound because of the shadda on م

So you should hear something close to:

al-ka-faa-a mu-him-ma

In full formal Arabic with case endings, the sentence is:

الكفاءةُ مهمةٌ

That is:

• الكفاءةُ = nominative, because it is the subject
• مهمةٌ = nominative, because it is the predicate of a nominal sentence

When reading aloud in everyday speech or when pausing, those endings are often not pronounced, so you usually hear:

الكفاءة مهمة

This is why Arabic textbooks often show both a fully vowelled form and an unvowelled form.

The final ة is called taaʾ marbuuṭa.

Its pronunciation depends on position:

• When stopping at the end of a word, it usually sounds like -a
• When the word is followed by another word in a grammatical connection, it often sounds like -t

So:

• in pause: مهمة → muhimma
• with case ending: مهمةٌ → muhimmatun

The same applies to الكفاءة:

• in pause: al-kafāʾa
• in full inflected form: al-kafāʾatu

Not as a normal equivalent of this sentence.

The standard basic sentence is:

الكفاءة مهمة

If you simply say مهمة الكفاءة, it will usually not mean the same thing. It may sound incomplete or be interpreted differently depending on context.

Arabic can put the predicate first in some cases for style or emphasis, but that is a more advanced topic. For a beginner, the safest and most natural pattern is:

subject first + predicate second

So stick with:

الكفاءة مهمة

Because there is a shadda on the middle م: مهمّة.

A shadda means the consonant is doubled or held slightly longer. So this is not muhima, but muhimma.

This doubled sound is an important part of correct pronunciation and spelling in Arabic.

The word كفاءة comes from the root ك ف أ.

This root has meanings connected to being equal, suitable, qualified, or competent. In modern usage, كفاءة often means things like:

• competence
• efficiency
• capability
• proficiency

The exact English translation depends on context.

So in different sentences, الكفاءة could be translated in slightly different ways, even though the Arabic word stays the same.

Yes. Both مهمة and هامة can mean important.

So both of these are possible:

• الكفاءة مهمة
• الكفاءة هامة

There can be slight stylistic differences depending on speaker, region, or context, but both are standard and understandable in Modern Standard Arabic.

You would need a masculine subject, and then the predicate adjective would also become masculine.

For example:

• العمل مهم = Work is important

Compare:

• الكفاءة مهمة = feminine subject + feminine adjective
• العمل مهم = masculine subject + masculine adjective

This shows how Arabic adjectives agree with the noun they describe in gender.