هو يعرف يفتح التطبيق على التليفون.

In Egyptian Arabic, يعرف + verb often means to know how to do something, and by extension to be able to do it.

So:

• هو يعرف = he knows
• هو يعرف يفتح = he knows how to open / he can open

This is very common in speech. It usually suggests ability based on know-how, not just physical possibility.

For example:

• يعرف يسوق = he knows how to drive / he can drive
• ما يعرفش يعوم = he doesn’t know how to swim / he can’t swim

After يعرف in this pattern, Egyptian Arabic normally puts the next verb directly in the imperfect form, without a separate word meaning to.

So:

• يعرف يفتح literally looks like
• he knows he-opens

but the real meaning is:

• he knows how to open

This is just how the structure works in Egyptian Arabic. English needs to open, but Arabic does not here.

يفتح is the imperfect form, here meaning open in the sense of to open after another verb.

In Egyptian Arabic, after verbs like يعرف, عايز, يحب, يقدر, you often use the imperfect form of the next verb:

• يعرف يفتح = knows how to open
• عايز يفتح = wants to open
• يقدر يفتح = is able to open

So even though يفتح can mean he opens by itself, after يعرف it functions more like to open in English.

Yes, it can often be omitted.

Arabic verbs already show the subject, and يعرف by itself can already mean he knows. So both of these are natural:

• هو يعرف يفتح التطبيق على التليفون
• يعرف يفتح التطبيق على التليفون

Adding هو can make the subject clearer or more emphatic, especially if you are contrasting him with someone else.

For example:

• هو يعرف يفتح التطبيق، بس أنا لا = He knows how to open the app, but I don’t

التطبيق means the app or the application.

It comes from the word for application, and in modern usage it commonly means a phone or computer app.

In everyday Egyptian speech, you may also hear borrowed forms like الأبلكيشن, but التطبيق is very common and widely understood.

Yes. على literally means on, and in this sentence it works very naturally as on the phone.

So:

• على التليفون = on the phone

This is similar to English, where we also say on the phone or on my phone when talking about apps, screens, or content.

In context, it means the app is being opened on the phone device, not somewhere else.

Because ت is a sun letter.

In Arabic, when ال comes before a sun letter, the l sound of ال is not pronounced. Instead, the next consonant is emphasized or doubled.

So:

• written: التطبيق
• pronounced more like: et-taṭbīʔ

This is why learners often hear something like ettatbii’ rather than al-tatbiiq.

The same thing happens in التليفون:

• written: التليفون
• pronounced: et-tilifōn

A common Egyptian-style pronunciation would be:

huwwa yiʿraf yiftaḥ et-taṭbīʔ ʿala t-tilifōn

A rough breakdown:

• هو = huwwa
• يعرف = yiʿraf
• يفتح = yiftaḥ
• التطبيق = et-taṭbīʔ
• على = ʿala
• التليفون = t-tilifōn or et-tilifōn, depending on speed and connected speech

The ʿ sound in يعرف and على is the Arabic letter ع, which does not exist in English.

It is natural Egyptian Arabic.

A few clues:

• التليفون is a very common colloquial word for telephone/phone
• يعرف + verb as knows how to is very common in spoken Arabic, especially Egyptian

In Modern Standard Arabic, you might more often see something like:

• هو يعرف كيف يفتح التطبيق على الهاتف = He knows how to open the app on the phone

or

• يستطيع فتح التطبيق على الهاتف = He can open the app on the phone

So your sentence is very good everyday spoken Egyptian.

Yes, absolutely.

يعرف + verb often sits between know how to and can in meaning.

So depending on context, this sentence could be understood as:

• He knows how to open the app on the phone
• He can open the app on the phone

The nuance is often that his ability comes from familiarity or know-how.

If you want a more direct idea of pure ability, speakers may also use يقدر:

• هو يقدر يفتح التطبيق على التليفون = He can open the app on the phone

You change both the pronoun and the verb form.

Examples:

• هي تعرف تفتح التطبيق على التليفون = She knows how to open the app on the phone

• هم يعرفوا يفتحوا التطبيق على التليفون = They know how to open the app on the phone

Notice that in Egyptian Arabic, the verb changes with the subject:

• هو يعرف
• هي تعرف
• هم يعرفوا

And the second verb changes too:

• يفتح
• تفتح
• يفتحوا

The sentence order here is very normal, but spoken Egyptian allows some flexibility.

Basic version:

• هو يعرف يفتح التطبيق على التليفون

You could also hear:

• يعرف يفتح التطبيق على التليفون if the subject is already understood

Or for emphasis:

• التطبيق هو يعرف يفتحه على التليفون in a more marked context, though this is less neutral

For learners, the safest natural pattern is:

subject + يعرف + verb + object + phrase

So this sentence is a very good model to follow.