أتوقع المطر.

A careful full pronunciation is ʾatawaqqaʿu al-maṭara.

In normal pause speech, you will often hear something closer to ʾatawaqqaʿ al-maṭar.

A few pronunciation notes:

• توقّع has a doubled q sound: waq-q
• the final consonant in أتوقع is ع (ʿayn), a throat sound with no exact English equivalent
• ط in المطر is an emphatic t
• ر is usually a tapped or lightly rolled r

أتوقع is the present/imperfect form, first person singular.

So it means:

• I expect
• I am expecting

In Arabic, the same imperfect form can cover both simple present and present continuous, depending on context.

In the imperfect verb system, Arabic adds prefixes to show the subject.

Here, أـ marks first person singular: I.

So:

• أتوقع = I expect
• تتوقع = you expect / she expects
• يتوقع = he expects
• نتوقع = we expect

This means the subject I is already built into the verb.

Yes. The subject I is understood from the verb أتوقع.

So Arabic does not need to say أنا here.

You could say:

• أنا أتوقع المطر

but that would usually add emphasis, contrast, or clarity:

• I expect rain.

Without أنا, the sentence is perfectly normal.

Grammatically, المطر is definite because of الـ.

But in translation, Arabic often uses a definite noun where English would simply say rain. So أتوقع المطر is very naturally understood as:

• I expect rain

not necessarily:

• I expect the rain

This happens quite often with nouns used in a general or familiar sense, especially things like weather and natural phenomena.

Normal Arabic writing usually leaves out short vowels and most case endings.

Fully vocalized, the sentence would be:

أَتَوَقَّعُ الْمَطَرَ

That shows:

• أَتَوَقَّعُ = the verb with final -u
• الْمَطَرَ = the object in the accusative with final -a

In everyday texts, these short vowels are usually omitted, so you just see:

أتوقع المطر

Because it is the direct object of the verb أتوقع.

The verb توقّع takes an object:

• أتوقع المطر = I expect rain
• أتوقع النجاح = I expect success
• أتوقع مشكلة = I expect a problem

In fully vocalized Arabic, that direct object gets the accusative ending:

• الْمَطَرَ

أتوقع comes from the verb توقّع.

Its root is و-ق-ع. This root is connected with meanings like to happen, to occur, or to fall in related forms.

توقّع is a derived form that means to expect, to anticipate, or to predict.

So:

• dictionary form: توقّع
• أتوقع = I expect

Yes, it is understandable and acceptable.

At the same time, Arabic also has some slightly fuller or more formal ways to express the idea, such as:

• أتوقع هطول المطر = I expect rainfall
• أتوقع نزول المطر = I expect rain to fall
• أتوقع أن تمطر = I expect it to rain

So أتوقع المطر is simple and clear, while other versions may sound a bit more formal, explicit, or stylistically polished.

They are not the same.

• أتوقع المطر = I expect rain / I think rain is likely
• أنتظر المطر = I am waiting for the rain

So أتوقع is about expectation or prediction, while أنتظر is about waiting.

A native English speaker might confuse these because English sometimes uses expect in a looser way, but in Arabic the distinction is important.

You can simply add لا before the verb:

لا أتوقع المطر
= I do not expect rain

This is the normal way to negate a present-tense statement like this in MSA.

The basic sentence is already natural:

أتوقع المطر

You can also say:

• أنا أتوقع المطر — adds emphasis to I
• المطر أتوقعه — more marked, with emphasis on rain

But for a learner, أتوقع المطر is the safest and most straightforward order.

It can cover both, depending on context.

It may mean:

• I expect
• I suppose
• I anticipate
• I predict

With المطر, it usually has a predictive sense:

• I expect rain
• I predict rain

With other contexts, it can be more like I assume or I suppose.