wasurenai you ni, kaigi no zikan ga kaite aru gamen wo sukuriinsyottosite okimasita.

It means so that I won’t forget or to avoid forgetting.

This pattern is:

• dictionary form / nai-form + ように

In this sentence, the verb is 忘れない (not forget), so:

• 忘れないように = so that I don’t forget

It often expresses purpose in situations where you are trying to make sure something does or does not happen.

ように and ために can both express purpose, but they are used differently.

Here, 忘れないように is natural because it means to make sure I don’t forget. This is the kind of purpose Japanese usually expresses with ように, especially when the goal is about:

• preventing something
• making something possible
• ensuring a certain result

By contrast, ために is more direct and often used when someone intentionally does something to achieve a goal.

So:

• 忘れないように = so that I won’t forget
• 忘れるために would mean in order to forget, which is the opposite meaning

If you tried 忘れないために, that can exist, but 忘れないように is more natural for this everyday “just to be safe” kind of sentence.

会議の時間 means the meeting time or the time of the meeting.

The particle の connects the two nouns:

• 会議 = meeting
• 時間 = time

So this is simply a noun phrase:

• 会議の時間 = the meeting’s time / the time for the meeting

This is a very common point of confusion.

In 時間が書いてある, the が marks 時間 as the thing that is written.

• 時間が書いてある = the time is written there

This whole part modifies 画面:

• 会議の時間が書いてある画面
• the screen on which the meeting time is written

So 時間 is not the direct object of the main sentence. It belongs inside the descriptive clause before 画面.

A helpful way to see it:

• 画面をスクリーンショットした = I screenshotted the screen
• Which screen?
• 会議の時間が書いてある screen

Inside that smaller clause, 時間が書いてある is like saying the time is written.

No. Here 書いてある does not mean is writing.

V-てある often means that something has been done and the result remains, usually because someone intentionally did it.

So:

• 書く = to write
• 書いてある = has been written / is written there

In this sentence:

• 会議の時間が書いてある画面
• the screen where the meeting time is written

It describes the visible state resulting from someone having written or entered that information.

This is different from:

• 書いている, which can mean is writing or sometimes is written, depending on context
• but 書いてある strongly suggests a resulting state, often with intentional setup

Because they are doing completely different jobs.

• 書いてある describes the screen
• スクリーンショットしておきました describes what the speaker did

So the structure is:

• [会議の時間が書いてある] 画面
  = the screen [that has the meeting time written on it]

Then the main action:

• 画面をスクリーンショットしておきました
  = I took a screenshot of that screen in advance / just to be safe

So ある is part of the description of the screen, not part of the main verb.

This is a noun modified by a clause.

Japanese often places descriptive clauses directly before the noun they describe.

So:

• 会議の時間が書いてある = the meeting time is written
• 画面 = screen

Together:

• 会議の時間が書いてある画面
• the screen on which the meeting time is written

This is called a relative clause in English grammar terms.

Japanese does not use words like that, which, or where here. It just puts the descriptive clause right before the noun.

It means I took a screenshot in advance or I took a screenshot and kept it ready.

The key part is 〜ておく:

• スクリーンショットする = to take a screenshot
• スクリーンショットしておく = to take a screenshot beforehand / for later convenience

Then the past polite form:

• スクリーンショットしておきました

So the sentence is not just saying that the speaker took a screenshot. It says they did it ahead of time, for a useful purpose.

That matches the earlier 忘れないように very well.

〜ておく often has one of these nuances:

• do something in advance
• do something just in case
• do something and leave it that way for later use

Here it gives the feeling of:

• I screenshotted it ahead of time so I’d have it later
• I screenshotted it just to be safe

So this sentence sounds thoughtful and practical.

Because 画面 is the thing being screenshotted.

The main verb phrase is:

• 画面をスクリーンショットしておきました
• I took a screenshot of the screen

Even though English says take a screenshot of the screen, Japanese often marks the thing as a direct object with を.

So:

• 画面を = the screen
• スクリーンショットしておきました = screenshotted in advance

It starts as a loanword noun, but here it is being used with する to make a verb:

• スクリーンショットする = to take a screenshot

In the sentence, it appears in the て-form:

• スクリーンショットして

So:

• スクリーンショットしておきました
• took a screenshot in advance

This is very common with loanwords in Japanese:

• コピーする = to copy
• メモする = to make a note
• スクリーンショットする = to screenshot

Because Japanese often leaves subjects and agents unstated when they are obvious from context.

In this sentence:

• the person who might forget is almost certainly the speaker
• the person who wrote or entered the meeting time does not matter

Japanese focuses on what is relevant, not on stating every role explicitly.

So the sentence naturally leaves out:

• I in so I won’t forget
• someone in the time is written on the screen

This omission is extremely normal in Japanese.

Because the speaker is politely reporting something they already did.

• おきました is the polite past of おく
• the action happened before now

So the sentence means something like:

• I’ve taken a screenshot in advance
• I took a screenshot so I wouldn’t forget

The polite form makes it suitable for everyday polite conversation, including work-related situations like talking about a meeting.

Yes. A very natural English rendering would be something like:

• So I wouldn’t forget, I took a screenshot of the screen showing the meeting time.
• I screenshotted the screen with the meeting time on it so I wouldn’t forget.
• Just so I wouldn’t forget, I took a screenshot of the screen where the meeting time was written.

These translations capture the grammar without sounding too stiff in English.

Usually 画面 means screen/display in a broad sense. It could be:

• a phone screen
• a computer screen
• an app screen
• some displayed page on a device

In this sentence, because of スクリーンショット, it most likely refers to the displayed screen on a phone or computer.

So 画面 is best understood as the screen/page being shown on the device.

It breaks down like this:

• 忘れないように、
  so that I won’t forget

• 会議の時間が書いてある画面を
  the screen on which the meeting time is written

• スクリーンショットしておきました。
  I took a screenshot in advance

So the full flow is:

1. purpose: so I won’t forget
2. object: the screen with the meeting time on it
3. action: I screenshotted it in advance

That is a very typical Japanese sentence structure.