אני רוצה להבהיר למה אני לא מסכימה עם ההצעה הזאת.

You can tell from מסכימה, which is clearly feminine singular.

Also, רוצה is one of those words that is often written the same for masculine and feminine in unpointed Hebrew, but pronounced differently:

• masculine: רוצה = rotzé
• feminine: רוצה = rotzá

So this sentence is said by a woman because of מסכימה, and in speech you would also hear רוצָה.

A male speaker would say: אני רוצה להבהיר למה אני לא מסכים עם ההצעה הזאת.

Because למה אני לא מסכימה... is a new clause, and Hebrew normally gives that clause its own subject.

So the structure is:

• אני רוצה להבהיר = I want to clarify
• למה אני לא מסכימה = why I don’t agree

Also, in the Hebrew present tense, forms like מסכימה show gender and number, but not clearly person, so using אני helps make the subject explicit and natural.

The ל־ is part of the Hebrew infinitive, the form that usually corresponds to English to + verb.

So:

• להבהיר = to clarify / to make clear

After a verb like רוצה, Hebrew normally uses an infinitive:

• רוצה להבהיר = want to clarify

This is a very common pattern:

• אני רוצה ללמוד = I want to study
• אני רוצה להבין = I want to understand

מסכימה is the present-tense form of להסכים.

In Hebrew, the present tense is built from forms that are historically participles, so they often behave a bit differently from English verbs. But for a learner, the important point is:

• אני מסכימה = I agree / I am agreeing

In this sentence, with לא, it means I do not agree.

Because the speaker is feminine singular, the form is מסכימה. A masculine singular speaker would use מסכים.

Here למה introduces an indirect question: why I don’t agree.

So it is not asking someone directly Why? It is embedding that question inside a larger sentence.

That is very normal in Hebrew after verbs like:

• להבהיר = to clarify
• להסביר = to explain
• לדעת = to know
• לשאול = to ask

A more formal alternative to למה is מדוע.

Because להסכים עם often means to agree with in the sense of being in agreement with a person, opinion, statement, or idea.

So:

• אני לא מסכימה עם ההצעה = I do not agree with the proposal

Compare that with להסכים ל־, which often means to agree to, consent to, or accept something.

So the preposition changes the nuance.

Because one ה is the definite article the, and the other ה is already part of the noun itself.

So:

• הצעה = proposal / suggestion
• ההצעה = the proposal / the suggestion

This is completely normal in Hebrew. When a noun already begins with ה, adding the definite article can create הה־ at the beginning.

In Hebrew, demonstratives like this usually come after the noun:

• הספר הזה = this book
• ההצעה הזאת = this proposal

Also, the noun is normally made definite, so Hebrew says:

• ההצעה הזאת

not

• הצעה הזאת

This is the standard pattern in modern Hebrew.

Because הצעה is a feminine singular noun, and the demonstrative has to match it.

So:

• masculine singular: הזה
• feminine singular: הזאת

That is why you get:

• הספר הזה = this book
• ההצעה הזאת = this proposal

In everyday spoken Hebrew, you may also hear the feminine form הזו: ההצעה הזו

They are close, but not exactly the same.

• להסביר = to explain
• להבהיר = to clarify / make clear

In this sentence, להבהיר suggests that the speaker wants to make her position clear, perhaps firmly or explicitly. If you used להסביר, it would sound more like simply giving an explanation.

So להבהיר is a good choice here because it emphasizes clarity.