يثق الطبيب بالممرضة.

It is a verbal sentence in Arabic, and its structure is:

• يَثِقُ = verb
• الطبيبُ = subject
• بِالممرضةِ = prepositional phrase connected to the verb

So the pattern is:

• verb + subject + prepositional phrase

This is very common in Modern Standard Arabic.

Because Arabic often uses verb-first word order, especially in straightforward statements.

So:

• يَثِقُ الطبيبُ بالممرضةِ = a normal verbal sentence
• الطبيبُ يَثِقُ بالممرضةِ = also correct, but now the sentence starts with the subject and can sound slightly more topic-focused, as in The doctor trusts the nurse

Both are grammatical. The verb-first version is very standard and neutral.

The verb وَثِقَ / يَثِقُ normally takes the preposition بِـ when talking about the person or thing trusted.

So Arabic says, literally:

• trusts in / has trust in the nurse

not a direct-object structure like English trusts the nurse.

That is why you say:

• يَثِقُ بالممرضةِ

and not simply:

• يَثِقُ الممرضةَ

with this meaning.

In fully vocalized Arabic, the sentence is:

• يَثِقُ الطَّبِيبُ بِالْمُمَرِّضَةِ

The endings show grammar:

• يَثِقُ ends in -u because it is in the normal indicative present
• الطبيبُ ends in -u because it is the subject, so it is nominative
• الممرضةِ ends in -i because it comes after بِـ, so it is genitive

So:

• subject → nominative
• after a preposition → genitive

In normal reading and speech, these final short vowels are often not pronounced clearly unless the text is fully vocalized or being read carefully.

الـ is the Arabic definite article, meaning the.

So:

• الطبيب = the doctor
• الممرضة = the nurse

Arabic attaches the definite article directly to the noun, instead of using a separate word like English the.

If you wanted a doctor trusts a nurse, you would usually say:

• يَثِقُ طبيبٌ بممرضةٍ

So the presence of الـ makes both nouns definite.

Yes. الممرضة is grammatically feminine and normally refers to a female nurse.

Compare:

• مُمَرِّض = male nurse
• مُمَرِّضَة = female nurse

Likewise:

• طبيب = male doctor
• طبيبة = female doctor

So this sentence, as written, refers to a male doctor and a female nurse.

The verb comes from the root:

• و ث ق

which carries the idea of trust, confidence, reliability.

The past tense is:

• وَثِقَ = he trusted

The present tense is:

• يَثِقُ = he trusts / he is trusting

A useful thing to notice is that the original root begins with و, but in the present tense that و disappears here:

• وَثِقَ → يَثِقُ

This happens with some verbs whose first root letter is و.

A careful pronunciation is:

• ya-thi-qu aṭ-ṭa-bī-bu bil-mu-mar-ri-ḍa-ti

A few important points:

• ث in يَثِقُ sounds like th in think
• ق is a deep q sound, made farther back than English k
• الطبيب is pronounced aṭ-ṭabīb, not al-ṭabīb, because ط is a sun letter, so the l of ال assimilates
• الممرضة keeps the l sound of ال, because م is a moon letter
• ض in ممرضة is an emphatic consonant with no exact English equivalent

If you pause at the end, the final short vowel is usually dropped, so بالممرضةِ is often heard more like بالممرضة.

Yes. That is also correct.

Compare:

• يَثِقُ الطبيبُ بالممرضةِ = neutral verbal sentence
• الطبيبُ يَثِقُ بالممرضةِ = subject-first, often with slightly more focus on the doctor

In many contexts, the translation into English is the same. The difference is mostly about sentence style and emphasis.

Arabic present tense often covers both:

• trusts
• is trusting

So يَثِقُ الطبيبُ بالممرضةِ can mean:

• The doctor trusts the nurse
• or, depending on context, The doctor is trusting the nurse

Usually, in a sentence like this, English will simply use trusts.

You can change the tense like this:

• Past: وَثِقَ الطبيبُ بالممرضةِ = The doctor trusted the nurse
• Future: سَيَثِقُ الطبيبُ بالممرضةِ = The doctor will trust the nurse
• Also future: سوف يَثِقُ الطبيبُ بالممرضةِ

So the rest of the sentence stays the same, and the verb changes for tense.

For a simple present meaning, you can say:

• لا يَثِقُ الطبيبُ بالممرضةِ = The doctor does not trust the nurse

For past negation, common options include:

• ما وَثِقَ الطبيبُ بالممرضةِ = The doctor did not trust the nurse
• لَمْ يَثِقْ الطبيبُ بالممرضةِ = The doctor did not trust the nurse

Notice that after لَمْ, the present verb becomes jussive, so:

• يَثِقُ → يَثِقْ

Removing الـ usually makes the noun indefinite.

So:

• الطبيب = the doctor
• طبيب = a doctor

and:

• الممرضة = the nurse
• ممرضة = a nurse

For example:

• يَثِقُ طبيبٌ بممرضةٍ = A doctor trusts a nurse

So الـ is one of the main ways Arabic marks definiteness.