هو يتبع التعليمات.

A fully vocalized version is:

هُوَ يَتَّبِعُ التَّعْلِيمَاتِ

A careful pronunciation is:

huwa yattabiʿu at-taʿlīmāti

A few things to notice:

• يَتَّبِعُ has a doubled t sound because of the shadda on ت.
• التعليمات is pronounced at-taʿlīmāt..., not al-taʿlīmāt..., because ت is a sun letter.
• In normal Arabic writing, these short vowels are usually not written, so you often just see هو يتبع التعليمات.

At the end of a sentence, speakers often pause, and the final short vowel may not be heard clearly, so التعليماتِ may sound more like التعليماتْ / at-taʿlīmāt in actual speech.

Yes. You can simply say:

يَتَّبِعُ التَّعْلِيمَاتِ

That already means he follows the instructions, because the verb form itself shows 3rd person masculine singular.

Arabic often drops subject pronouns when the verb already makes the subject clear. Adding هو can make the subject more explicit, or give a slight sense of emphasis or contrast.

Because Arabic allows more than one natural word order.

Two common possibilities are:

• يَتَّبِعُ التَّعْلِيمَاتِ — He follows the instructions
• هُوَ يَتَّبِعُ التَّعْلِيمَاتِ — also He follows the instructions, but with the subject stated explicitly

Starting with هو can feel a bit like:

• As for him, he follows the instructions
• He is the one who follows the instructions

In beginner materials, the pronoun is often included just to make the subject very clear.

Here, يتبع is most naturally understood as:

يَتَّبِعُ = he follows

It comes from the verb:

اِتَّبَعَ = to follow

This verb is from the root:

ت ب ع

which carries the basic idea of following.

One thing that can confuse learners is that Arabic usually writes words without short vowels, so يتبع can look ambiguous on the page. In this sentence, the intended reading is يَتَّبِعُ.

Because Arabic present-tense verbs already cover meanings like:

• he follows
• he is following

So يَتَّبِعُ can mean either one, depending on context.

If you want to make the progressive meaning clearer, you can add something like:

• الآن = now
• حاليًّا = currently

For example:

هو يتبع التعليمات الآن
He is following the instructions now

Because ت is a sun letter.

When الـ comes before a sun letter, the l sound of al- is not pronounced. Instead, the following consonant is doubled.

So:

• written: التعليمات
• pronounced: at-taʿlīmāt

You will still write the ل in الـ, but in pronunciation it assimilates to the ت.

التعليمات means the instructions.

It is a plural form ending in -ات, which is a very common feminine plural ending in Arabic.

A possible singular is:

تَعْلِيمَة = an instruction

But in real usage, تعليمات is much more common when talking about instructions as a set, such as directions, rules, or procedural steps.

It is also related to the root:

ع ل م

which has to do with knowledge / teaching / informing.

Because التعليمات is a sound feminine plural, and that type of noun has a special pattern of case endings:

• nominative: التعليماتُ
• accusative: التعليماتِ
• genitive: التعليماتِ

So even though it is the direct object of the verb, its accusative ending is kasra here, not fatḥa.

That is why the fully vocalized form is:

هُوَ يَتَّبِعُ التَّعْلِيمَاتِ

This is a very common point of confusion for English-speaking learners.

In this sentence, يتبع takes a direct object, so no preposition is needed:

يتبع التعليمات = he follows the instructions

That is perfectly normal.

Compare this with another verb such as:

يلتزم بالتعليمات = he adheres to the instructions

Here, the verb يلتزم uses the preposition بـ.

So:

• اتّبع + direct object
• التزم بـ + noun

Both can be translated naturally in English, but their grammar is different in Arabic.

Here are some common forms:

• هو يَتَّبِعُ التعليمات — he follows the instructions
• هي تَتَّبِعُ التعليمات — she follows the instructions
• أنا أَتَّبِعُ التعليمات — I follow the instructions
• نحن نَتَّبِعُ التعليمات — we follow the instructions
• هم يَتَّبِعُونَ التعليمات — they follow the instructions

So the beginning of the verb changes to match the subject, while التعليمات stays the same as the object.

Because standard Arabic writing normally leaves out most short vowels in everyday texts.

So learners often see:

هو يتبع التعليمات

instead of:

هُوَ يَتَّبِعُ التَّعْلِيمَاتِ

Native readers rely on context to know the correct pronunciation and meaning. For learners, though, the fully vocalized form is very helpful because it shows:

• the exact verb pattern
• the doubled consonant in يَتَّبِعُ
• the case ending on التعليماتِ

So what looks simple in writing may contain a lot of grammatical information underneath.