יש לה שליטה טובה במכונית.

Because in the present tense, Hebrew usually expresses possession with יש + ל־.

So:

• יש = there is / there exists
• לה = to her

Literally, יש לה means there is to her, but in natural English that becomes she has.

לה is made of:

• ל־ = to / for
• ־ה = her

So לה literally means to her or for her.

In this sentence, it marks the person who possesses something.

Compare:

• יש לי = I have
• יש לו = he has
• יש לה = she has
• יש להם = they have

Because לה already tells you who the possessor is: her.

Hebrew does not need a separate subject pronoun here the way English uses she.
So יש לה already means she has.

If you added היא, it would usually sound unnecessary or marked unless you were emphasizing something.

שליטה means control, command, or mastery.

It comes from the root ש־ל־ט, which is related to the idea of ruling, controlling, or having command over something.

In this sentence, שליטה refers to good handling or control.

You will also see it in expressions like:

• שליטה בשפה = command of a language
• שליטה במצב = control of the situation

Because adjectives in Hebrew must agree with the noun they describe.

שליטה is a feminine singular noun, so the adjective must also be feminine singular:

• שליטה טובה = good control

If the noun were masculine singular, you would use טוב instead.

Because Hebrew adjectives normally come after the noun.

So Hebrew says:

• שליטה טובה = literally control good

This is the normal word order for noun + adjective in Hebrew.

More examples:

• מכונית מהירה = a fast car
• ילד טוב = a good boy

Yes, ב־ often means in, but prepositions do not always match English one-for-one.

With שליטה, Hebrew often uses ב־ to mark the area or thing someone has mastery or control in.

So here במכונית is best understood as something like:

• with the car
• in handling the car
• of the car, in natural English

It does not just mean physical location, like inside the car.

Because Hebrew often uses a noun + preposition pattern where English uses of.

So instead of a direct equivalent of control of the car, Hebrew says:

• שליטה במכונית

This is very common in Hebrew.
English and Hebrew package these relationships differently.

It is absorbed into the preposition.

The basic form is:

• ב־ = in / with
• המכונית = the car

Together they become:

• במכונית

This is pronounced ba-mekhonit.

The same kind of contraction happens with:

• ב + ה
• ל + ה
• כ + ה

So:

• בבית can mean in a house
• בבית can also mean in the house, depending on context and vocalization

Not exactly.

Both ב־ and על can appear with שליטה, but the nuance can differ.

• שליטה במכונית often sounds like general handling ability or mastery in operating the car
• שליטה על המכונית often sounds more like control over the specific vehicle in a concrete situation

For example, Hebrew very commonly says:

• הוא איבד שליטה על המכונית = he lost control of the car

In your sentence, במכונית gives more of a skill/handling flavor.

A simple pronunciation guide is:

yesh lah shlitah tovah ba-mekhonit

Roughly:

• יש = yesh
• לה = lah
• שליטה = shlee-TAH
• טובה = to-VAH
• במכונית = ba-mekho-NEET

Just change לה to לו:

• יש לו שליטה טובה במכונית.

That means He has good control of the car.

Everything else stays the same.

Use אין instead of יש:

• אין לה שליטה טובה במכונית.

That means She doesn’t have good control of the car.

This is the normal negative pattern for present-tense possession in Hebrew:

• יש לה = she has
• אין לה = she does not have