من عادة صديقي أن يدعو صديقتي ويقترح نزهة.

It is an idiomatic way to say It is my friend’s habit to... or My friend عادةً / typically ...

A rough breakdown is:

• من = literally from / among
• عادة = habit / custom
• صديقي = my friend
• أن يدعو... ويقترح... = to invite/call... and suggest...

So the sentence means something like:

• It is my friend’s habit to invite my female friend and suggest an outing.
• More naturally in English: My friend usually invites my female friend and suggests an outing.

The opening من عادة... أن... is very common in Arabic for expressing what someone typically does.

Because عادة صديقي is an iḍāfa construction, which means a possessive phrase.

So:

• عادة صديقي = my friend’s habit
  • عادة = habit
  • صديقي = my friend

Then the preposition من comes before the whole phrase:

• من عادة صديقي = among my friend’s habits / it is my friend’s habit

This is a very normal Arabic structure. English often uses ’s or of, while Arabic commonly uses iḍāfa.

Here أن introduces a verb clause and often corresponds to English to.

So:

• أن يدعو = to invite / to call
• أن يقترح = to suggest

In grammar terms, أن makes the following imperfect verb subjunctive.

That is why the pattern من عادة فلان أن + verb means:

• It is someone’s habit to + verb

So in this sentence:

• من عادة صديقي أن يدعو... = It is my friend’s habit to invite...

They are in the imperfect because Arabic uses the imperfect for actions that are ongoing, repeated, or habitual.

This sentence describes a habit, not a one-time completed event, so the imperfect is the natural choice.

Also, after أن, Arabic normally uses the imperfect:

• أن يدعو
• أن يقترح

So the imperfect works here for both reasons:

1. the structure أن + imperfect
2. the meaning of habitual action

Because يدعو is the correct singular form of the verb دعا in the imperfect: he invites / he calls.

• دعا = to call / invite
• يدعو = he calls / invites

A common learner mistake is to write يدعوا, but that spelling usually suggests the plural ending وا found with they in some forms.

So:

• يدعو = he invites
• يدعون = they invite

This verb is a weak verb ending in a vowel, so its forms can look a little unusual at first.

Because one أن can govern both verbs when they are joined by و.

So this:

• أن يدعو صديقتي ويقترح نزهة

effectively means:

• أن يدعو صديقتي وأن يقترح نزهة

Repeating أن is possible in some contexts, but it is not necessary here. Arabic often omits the second one when the two verbs are coordinated and clearly belong together.

Because دعا can directly take a person as its object when it means to invite someone or to call someone.

So:

• يدعو صديقتي = he invites my female friend or he calls my female friend

If you want to mention what the person is invited to, Arabic often adds إلى:

• دعاها إلى نزهة = He invited her to an outing

But in your sentence, the structure is:

• invite the person
• then suggest an outing

So the Arabic says:

• يدعو صديقتي ويقترح نزهة
• he invites/calls my female friend and suggests an outing

Grammatically, صديقتي simply means my female friend.

However, in actual usage, it can sometimes be understood as:

• my female friend
• my girlfriend

The exact meaning depends on context. Modern Standard Arabic does not force one interpretation by itself here.

So if no extra context is given, the safest literal understanding is:

• my female friend

نزهة means something like:

• an outing
• a stroll
• a picnic
• a pleasant excursion

The exact English word depends on context.

It is indefinite because there is no ال on it:

• نزهة = an outing
• النزهة = the outing

So يقترح نزهة means he suggests an outing, not the outing.

Yes. A very literal translation is:

• It is my friend’s habit to invite my female friend and suggest an outing.

But more natural English might be:

• My friend usually invites my female friend and suggests going out.
• My friend tends to invite my female friend and suggest an outing.
• It’s typical of my friend to invite my female friend and suggest a picnic.

The Arabic structure is slightly more formal than everyday English, so a fully natural translation often sounds less literal.