kanojo ni wa nouryoku ga arimasu.

She has the ability.

Breakdown of kanojo ni wa nouryoku ga arimasu.

• は: topic particle
• が: subject particle
• に: indirect object particle
• ある: to exist

Questions & Answers about kanojo ni wa nouryoku ga arimasu.

Why are there two particles after 彼女: に and は?

They are doing different jobs.

• に marks the possessor/target/location-like place where something exists.
• は marks that whole part, 彼女に, as the topic.

A very common pattern is:

• X には Y がある = X has Y
  literally: As for X, Y exists (for/in relation to X)

So:

• 彼女には能力があります
• literally: As for her, ability exists
• natural English: She has ability / She is capable

The は can also add a slight contrastive feeling depending on context.

Why is 能力 followed by が?

Because with ある / いる, the thing that exists is usually marked by が.

In this sentence, the thing that exists is 能力.

So the structure is:

• 彼女には = as for her / for her
• 能力が = ability exists
• あります = there is / exists

This is why が is natural here.

Why do we use あります and not います?