पशु चिकित्सक पालतू जानवर को देखते हैं।

Literally, पशु चिकित्सक breaks down as:

• पशु = animal
• चिकित्सक = doctor / physician / medical practitioner

So पशु चिकित्सक literally means animal doctor, which is the standard Hindi way to say veterinarian / vet.

Hindi usually does not use articles like English a, an, and the.

So:

• पशु चिकित्सक can mean a veterinarian, the veterinarian, or veterinarians
• पालतू जानवर can mean a pet, the pet, or pet animals

You understand which one is meant from context, not from a separate article word.

को is a very common Hindi postposition. Here it marks the direct object, especially because the object is an animate / living being and specific.

So:

• पालतू जानवर = pet animal / pet
• पालतू जानवर को = the pet animal / pet as the object of the verb

A native English speaker can think of को here as a marker showing who is being seen.

Because in Hindi, living beings often take को when they are specific direct objects.

Since the sentence is about seeing a particular animal or pet, को is natural.

Compare the idea:

• जानवर देखते हैं = see animals / are looking at animals
• जानवर को देखते हैं = see the animal / are looking at the animal

So को makes the object feel more definite and clearly marked.

In Hindi, adjectives usually come before the noun they describe, just like in English.

So:

• पालतू = domesticated / pet
• जानवर = animal

Together:

• पालतू जानवर = pet animal / pet

This part is very straightforward for English speakers because the word order is similar to pet animal.

Hindi normally prefers Subject–Object–Verb word order.

This sentence is:

• पशु चिकित्सक = subject
• पालतू जानवर को = object
• देखते हैं = verb

So the basic pattern is:

Veterinarian + pet + sees

That is normal Hindi sentence order, even though English usually says:

The veterinarian sees the pet.

This is a very common learner question.

देखते हैं is used with:

• a plural subject, or
• a singular honorific/respectful subject

Since चिकित्सक can be singular or plural depending on context, देखते हैं can mean either:

• veterinarians see the pet, or
• the veterinarian sees the pet in a respectful or formal style

By contrast:

• देखता है = he sees
• देखती है = she sees
• देखते हैं = they see / he sees (respectful) / you see (formal)

So the form here is not strange; it is a normal polite or plural form.

By itself, चिकित्सक can be either singular or plural in form. The noun does not change here.

The verb helps, but देखते हैं is still a little ambiguous because it can be:

• plural
• or honorific singular

So this sentence can be understood as either:

• The veterinarian sees the pet
• Veterinarians see the pet

Only context tells you which meaning is intended.

In this sentence, the subject is पशु चिकित्सक, and the object is marked with को.

In non-perfective sentences like this one, the verb normally agrees with the subject, not with a को-marked object.

So the verb reflects the subject side of the sentence, which is why we get देखते हैं.

This is different from some Hindi past/perfective sentences, where agreement can work differently.

देखते हैं has two parts:

• देखते = the habitual/imperfective participle of देखना (to see / to look at)
• हैं = present tense form of to be

Together, this often gives a habitual present meaning such as:

• see
• looks at
• are seeing only in some contexts, though that is less literal here

So देखते हैं often expresses a general or regular action: sees / see.

Usually, yes.

देखते हैं is most naturally the habitual present, so it often means something like:

• sees
• usually sees
• looks at
• examines

If you wanted to strongly emphasize an action happening right now, Hindi would often use a progressive form such as:

• देख रहे हैं

So this sentence sounds more like a general statement or a normal professional action.

Yes.

In many contexts, देखना can mean more than just visual seeing. It can also mean:

• look at
• check
• inspect
• examine

So with a veterinarian and a pet, देखते हैं can naturally be understood as examines depending on context.

Because पालतू is an adjective that is often used in an indeclinable way here, so it does not change form.

Also, जानवर itself does not force a visible adjective change here.

Hindi has two broad adjective patterns:

• changing adjectives, like अच्छा / अच्छी / अच्छे
• non-changing adjectives, like खुश, सुंदर in many uses, and words like पालतू here

So पालतू जानवर stays the same.

In conversation, many speakers do use English-based words like वेट or डॉक्टर in mixed Hindi-English speech.

But पशु चिकित्सक is the more formal and standard Hindi expression.

So:

• पशु चिकित्सक = formal / standard Hindi
• वेट = common in casual bilingual speech

Both may be understood, but the sentence you were given is the more textbook-style Hindi version.