raisyuu sensei to mendansuru yotei desu.

You’re right: normal Japanese writing usually does not use spaces.

So this would normally be written as:

来週先生と面談する予定です。

Spaces are often added in beginner materials to make the parts easier to see.

A simple breakdown is:

• 来週 = next week
• 先生と = with the teacher
• 面談する = to have an interview / meeting
• 予定です = is the plan / is scheduled

So the structure is basically:

[time] + [person with whom you do the action] + [action] + 予定です

More literally, it is something like:

Next week, there is a plan to have a meeting with the teacher.

Natural English usually becomes something like I’m scheduled to meet with the teacher next week or I plan to have a meeting with the teacher next week.

Japanese often leaves out the subject when it is clear from context.

So even though English usually needs something like I, we, or the student, Japanese often just omits it.

In context, this sentence probably means:

• I am scheduled to meet with the teacher next week.
• or We are scheduled to meet with the teacher next week.

The listener usually figures it out from the situation.

Because 来週 is a relative time expression, and words like this often do not take に.

Common examples:

• 今日 = today
• 明日 = tomorrow
• 昨日 = yesterday
• 来週 = next week
• 去年 = last year

So:

• 来週面談します = I’ll have a meeting next week

is natural.

Using に with 来週 is generally unnatural in standard usage.

Here, と means with, not and.

In this sentence:

• 先生と面談する = to have a meeting with the teacher

This と is used with actions done together or involving another person, such as:

• 友達と話す = talk with a friend
• 先生と会う = meet with the teacher

It can also mean and when listing nouns, but that is a different use:

• 先生と学生 = teacher and student

So you tell the meaning from the context.

面談 is a verbal noun, sometimes called a suru-noun. That means it can combine directly with する:

• 面談する = to have an interview / meeting

You may also see:

• 面談をする

Both are possible, but 面談する is very common and natural.

This happens with many Sino-Japanese nouns:

• 勉強する = study
• 相談する = consult
• 予約する = make a reservation

So 面談する is just a standard noun + する verb form.

面談 is usually a fairly formal one-on-one meeting or interview.

It is often used for situations like:

• a meeting with a teacher
• a conference with a parent
• a meeting with a supervisor
• an interview-style discussion

It sounds more formal than casual verbs like:

• 会う = meet
• 話す = talk

So 先生と面談する suggests something like a scheduled teacher conference, not just casually chatting with a teacher.

They are similar, but not exactly the same.

予定です suggests a plan, arrangement, or schedule. It often sounds a bit more objective, as if something is already planned.

• 来週先生と面談する予定です。
  = I’m scheduled to meet with the teacher next week / I have plans to meet with the teacher next week.

つもりです is more about personal intention.

• 来週先生と面談するつもりです。
  = I intend to meet with the teacher next week.

So:

• 予定です = planned / scheduled
• つもりです = intend to

In many situations both could work, but 予定です often sounds a little more fixed.

Because the main predicate is not just the verb 面談する. The key point is that:

• 面談する modifies 予定
• 予定です is the main ending

So the sentence is structured like this:

• [先生と面談する] 予定です
• [meeting with the teacher] is the plan

In other words, 面談する is part of a clause that describes 予定.

This is a very common Japanese pattern:

• 日本へ行く予定です。 = I plan to go to Japan.
• 明日早く起きる予定です。 = I plan to get up early tomorrow.

So です is attached to 予定, not directly to 面談する.

Japanese does not use articles like a or the.

So 先生 can mean:

• the teacher
• a teacher
• my teacher
• your teacher

The exact meaning comes from context.

In many real situations, 先生 here would naturally be understood as the teacher or my teacher, depending on who is speaking.

Japanese word order is more flexible than English, but this order is very natural.

The sentence:

来週 先生と 面談する 予定です。

has a common pattern:

• time first
• then the other person
• then the action
• then 予定です

You could move parts around for emphasis, but beginners should treat this version as the safest default.

For example, 先生と来週面談する予定です may also be understood, but 来週先生と面談する予定です sounds very standard and easy to follow.

It is read:

らいしゅう　せんせい　と　めんだんする　よてい　です。

More naturally without spaces:

らいしゅう せんせいと めんだんする よていです。

Word readings:

• 来週 = らいしゅう
• 先生 = せんせい
• 面談 = めんだん
• 予定 = よてい