הוא אמר שצפויה תשובה סופית עד סוף היום, אבל אני עדיין מחכה.

Because תשובה is a feminine singular noun, and צפויה has to agree with it.

• תשובה = answer, feminine singular
• צפוי = expected, masculine singular
• צפויה = expected, feminine singular

So שצפויה תשובה סופית means something like that a final answer is expected.

Here ש־ means that.

So:

• הוא אמר = he said
• שצפויה תשובה סופית = that a final answer is expected

This ש־ is extremely common in Hebrew and often introduces a clause after verbs like say, think, know, hope, and so on.

In present-tense Hebrew, the verb to be is usually omitted.

So Hebrew often says the equivalent of:

• צפויה תשובה סופית = a final answer expected

but the natural English translation is:

• A final answer is expected

This is completely normal Hebrew grammar.

Good question. In תשובה סופית, the adjective סופית comes after the noun because that is a normal noun + adjective phrase:

• תשובה סופית = a final answer

But צפויה here is not just a regular adjective inside the noun phrase. It is being used more like a predicate:

• צפויה תשובה סופית = a final answer is expected

This word order is common in formal or semi-formal Hebrew. You may also hear other structures in everyday speech, but this one is very natural.

Here צפויה means expected or anticipated.

It comes from the root related to expecting / foreseeing. In this sentence, it does not mean that someone is actively waiting for the answer. It means that the answer is expected to arrive or be given.

So the idea is:

• שצפויה תשובה סופית עד סוף היום = that a final answer is expected by the end of the day

Because it describes תשובה, which is feminine.

• תשובה = feminine singular
• סופי = final, masculine singular
• סופית = final, feminine singular

So:

• תשובה סופית = final answer

Hebrew adjectives usually agree with the noun in gender and number.

They are not the same.

• עד סוף היום = by the end of the day / until the end of the day
• בסוף היום = at the end of the day

In this sentence, עד סוף היום means the answer is expected no later than the end of the day.

So the sense is:

• You should have the answer by then

If you said בסוף היום, it would sound more like the answer comes at that time.

Literally:

• אבל = but
• אני = I
• עדיין = still
• מחכה = waiting

So:

• אבל אני עדיין מחכה = but I am still waiting

This is very natural Hebrew.

מחכה is the present-tense masculine singular form of לחכות = to wait.

Because the speaker says אני, the present-tense form does not always show gender in English translation, but in Hebrew it does:

• אני מחכה = I am waiting, said by a male speaker
• אני מחכה can also appear in informal writing by anyone, but strictly speaking:
• אני מחכה = masculine speaker
• אני מחכה is spelled the same? No, for this verb the feminine form is usually מחכה in pronunciation? Actually the standard feminine singular present form is מחכה pronounced differently? Not really visible here, so learners usually need to know this from context and vocalization.

In normal unvoweled writing, this form can be ambiguous. In everyday Hebrew, context usually makes it clear.

In this sentence it means still:

• אני עדיין מחכה = I am still waiting

Sometimes English learners want to use yet, but yet usually appears in negative sentences or questions in English:

• I haven’t received it yet
• Are you done yet?

Hebrew עדיין can cover some of that territory depending on the structure, but here still is the best match.

Usually הוא אמר is most directly he said.

• אמר = said

English sometimes uses told, but Hebrew often needs a different structure for that, especially if there is an indirect object:

• הוא אמר לי = he said to me
• הוא told me would more naturally match a structure with a recipient

So in this sentence, he said is the best fit.

It is mostly neutral, but צפויה תשובה סופית sounds a little more formal or businesslike than very casual speech.

The whole sentence would sound natural in contexts like:

• work
• customer service
• bureaucracy
• project updates
• waiting for an official decision

A very casual speaker might choose a slightly different phrasing, but this sentence is perfectly natural Hebrew.