Таз підтримує хребет.

Because the basic word order here is subject + verb + object:

• таз = subject
• підтримує = verb
• хребет = object

So the sentence is understood as The pelvis supports the spine.

This matters especially because both таз and хребет are masculine singular inanimate nouns, and in this sentence their forms do not clearly show the difference by themselves. Word order does a lot of the work here.

Хребет is in the accusative case because it is the direct object of the verb.

But for many masculine inanimate nouns in Ukrainian, the accusative singular looks exactly the same as the nominative singular. So:

• nominative: хребет
• accusative: хребет

That is why the form does not change.

Підтримує is:

• present tense
• 3rd person singular
• from the verb підтримувати

It agrees with таз, which is a singular noun.

So grammatically it means supports or is supporting, depending on context. In this sentence, it is most naturally understood as a general fact.

The infinitive is підтримувати.

This is an imperfective verb. That means it is used for:

• ongoing actions
• repeated actions
• general truths
• descriptions without focusing on completion

That fits this sentence well, because it states a general anatomical fact.

A related perfective form is підтримати, but that would not normally be used for a general present-time fact like this.

Yes, Ukrainian word order is flexible, but in this sentence you should be careful.

Таз підтримує хребет is the most straightforward neutral order.

If you say Хребет підтримує таз, that will normally mean The spine supports the pelvis, because the first noun is usually taken as the subject.

Since both nouns look similar in nominative and accusative here, changing the order can change the meaning or create ambiguity.

Ukrainian has no articles like English the or a/an.

So Ukrainian simply says:

• таз
• хребет

Whether English uses the, a, or no article at all depends on context and translation style. In a sentence like this, English usually uses the pelvis and the spine because it is talking about anatomical structures in a general, definite way.

A rough pronunciation guide is:

• таз = tahz
• підтримує = pid-TRY-mu-ye
• хребет = khre-BET

A few notes:

• х is not a normal English h. It is a harsher sound, like ch in Scottish loch or German Bach.
• The stress is on -три- in підтримує.
• The stress is on the last syllable in хребет.

It can mean several related things depending on context, such as:

• supports physically
• maintains
• backs
• upholds

In this sentence, the meaning is clearly supports physically.

So Таз підтримує хребет is about physical structure, not emotional or political support.

No. Таз can also mean basin or tub in other contexts.

For example, outside anatomy, it could refer to a container. But in this sentence, because of хребет and the anatomical context, таз clearly means pelvis.

So this is a good example of how context tells you which meaning is intended.

It can cover both ideas in different contexts, because Ukrainian does not divide the present tense in exactly the same way English does.

So підтримує can mean:

• supports
• is supporting

But here the sentence expresses a general fact, so supports is the best English match.