hayaku okireba, asagohan wo youi dekimasu.

起きれば is the -ば conditional form of 起きる (to wake up / to get up).

• 起きる → dictionary form
• 起きれば → if/when [someone] gets up

So the pattern is:

• Verb + ば = if ...

For る-verbs like 起きる, you change る to れば:

• 食べる → 食べれば
• 見る → 見れば
• 起きる → 起きれば

In this sentence, 早く起きれば means if you/I/we get up early.

Because 早い is an i-adjective, and here it is modifying a verb (起きる), not a noun.

To turn an i-adjective into an adverb, you change -い to -く:

• 早い = early
• 早く = early / quickly

So:

• 早い朝 = an early morning
• 早く起きる = to get up early

In this sentence, 早く describes how someone gets up.

It can suggest either, depending on context, but in this sentence it is most naturally understood as get up early.

Japanese 起きる can cover both ideas:

• wake up
• get out of bed / get up

Since the next part is about preparing breakfast, the practical meaning is probably closer to getting up early enough to do that.

It is close to if, but not always identical in nuance.

In this sentence, 早く起きれば、朝ご飯を用意できます。 means something like:

• If you get up early, you can prepare breakfast.
• If I get up early, I can prepare breakfast.

The -ば form often sounds like a fairly neutral condition: if X happens, then Y is possible / will follow.

Here it gives a straightforward cause-and-result feeling:

• wake up early → be able to prepare breakfast

The comma just marks a pause between the condition and the main result.

• 早く起きれば、 = if [someone] gets up early,
• 朝ご飯を用意できます。 = [someone] can prepare breakfast.

Japanese punctuation is somewhat flexible, so the sentence could also be written without the comma in casual writing. The comma simply makes it easier to read.

を marks the direct object of the action.

Here, the thing being prepared is 朝ご飯 (breakfast), so:

• 朝ご飯を用意する = to prepare breakfast

So を is showing what is being prepared.

用意できます means can prepare or are able to prepare.

The base word is:

• 用意する = to prepare

Then:

• 用意できる = can prepare
• 用意できます = polite form of can prepare

So the sentence is saying that preparing breakfast is possible if the person gets up early.

Because the sentence is about ability/possibility, not just the action itself.

Compare:

• 朝ご飯を用意します。 = I will prepare breakfast / I prepare breakfast.
• 朝ご飯を用意できます。 = I can prepare breakfast.

So the meaning is not simply I prepare breakfast if I wake up early, but rather If I wake up early, I am able to prepare breakfast.

The subject is omitted, which is very common in Japanese.

So depending on context, it could mean:

• If I get up early, I can prepare breakfast.
• If you get up early, you can prepare breakfast.
• If we get up early, we can prepare breakfast.
• If someone gets up early, they can prepare breakfast.

Japanese often leaves out subjects when they are understood from the situation.

Because Japanese often omits the topic when it is already understood.

A fuller version could be something like:

• 私は早く起きれば、朝ご飯を用意できます。
• あなたは早く起きれば、朝ご飯を用意できます。

But in normal conversation, that would often be unnecessary if the topic is already clear.

So the sentence sounds natural without は.

Not as naturally. The sentence most strongly suggests that someone can prepare breakfast, not that breakfast simply gets prepared on its own.

That is because:

• 朝ご飯を用意できます focuses on the ability to perform the action
• the omitted subject is the person who can do it

So the most natural understanding is:

• If [someone] gets up early, [they] can prepare breakfast.

Both can mean if you get up early, but the nuance is a little different.

• 早く起きれば: a more neutral, condition-based statement
• 早く起きたら: often feels a bit more conversational and can sound more like when/if you do that

In this sentence, 起きれば works well because the second half is about what becomes possible under that condition.

So:

• 早く起きれば、朝ご飯を用意できます。
  = If you get up early, you can prepare breakfast.

A similar sentence with たら is also possible:

• 早く起きたら、朝ご飯を用意できます。

But -ば sounds slightly more like a general condition.

No. Common alternatives include:

• 朝ご飯（あさごはん）
• 朝ごはん
• 朝食（ちょうしょく）

Differences in tone:

• 朝ご飯 / 朝ごはん = common, everyday
• 朝食 = a bit more formal or written

In this sentence, 朝ご飯 sounds very natural and everyday.

Yes, it is natural and understandable.

It sounds like a practical statement such as:

• If I get up early, I can prepare breakfast.

One small nuance is that Japanese often depends on context, so without context we do not know exactly who can prepare breakfast. But grammatically and naturally, the sentence is fine.