Viemme lasia kierrätyspisteeseen huomenna aamulla.

Because viemme already includes the subject we.

In Finnish, the verb ending often tells you who is doing the action. Here:

• vien = I take
• viet = you take
• vie = he/she/it takes
• viemme = we take
• viette = you (plural) take
• vievät = they take

So Viemme by itself already means we take / we are taking / we will take.

You can add me and say Me viemme..., but that usually adds emphasis or contrast.

Because Finnish normally uses the present tense for future meaning when the time is clear from context.

So:

• Viemme lasia kierrätyspisteeseen huomenna aamulla. = We’ll take glass to the recycling point tomorrow morning.

Finnish does not usually have a separate future tense like English does. Instead, the future is shown by:

• the present tense
• plus a time expression such as huomenna (tomorrow)

This is completely normal Finnish.

It comes from the verb viedä, which means to take, to carry, or to bring somewhere away from the current place.

So:

• viedä = to take
• viemme = we take

In this sentence, it means taking something to the recycling point.

A useful contrast is:

• viedä = take something there
• tuoda = bring something here

Because lasia is the partitive singular, and that is natural here when talking about glass as a material or an unspecified amount of glass.

So:

• lasi = glass / a glass
• lasia = some glass / glass (as a substance, unspecified amount)

In a recycling sentence, lasia sounds like glass material rather than one clearly defined item.

Compare:

• Viemme lasia kierrätyspisteeseen. = We are taking some glass / glass material to the recycling point.

• Viemme lasin kierrätyspisteeseen. = We are taking a/the glass item to the recycling point.

The partitive is very common in Finnish when the object is a material, substance, or indefinite quantity.

It is singular: specifically, partitive singular.

That can feel strange to an English speaker, because English often treats this kind of idea more loosely. But in Finnish, a material word can stay singular even when the meaning is something like some glass.

So:

• lasia = partitive singular
• laseja = partitive plural, usually glasses or glass items

In this sentence, lasia is the natural form if you mean glass for recycling in a general/material sense.

It is the noun kierrätyspiste in the illative case, which usually means into or to a place.

So:

• kierrätyspiste = recycling point / recycling drop-off point
• kierrätyspisteeseen = to the recycling point

This is why Finnish does not need a separate word like English to here. The case ending already carries that meaning.

It is a compound word plus a case ending:

• kierrätys = recycling
• piste = point
• kierrätyspiste = recycling point
• kierrätyspisteeseen = to the recycling point

So the word is long, but it is made in a very regular Finnish way:

1. put two nouns together to make a compound
2. add the appropriate case ending

Finnish does this all the time.

Because Finnish often uses case endings instead of prepositions.

In English, you say:

• to the recycling point

In Finnish, the -seen ending in kierrätyspisteeseen already gives that meaning.

A few related forms are:

• kierrätyspisteessä = at/in the recycling point
• kierrätyspisteestä = from the recycling point
• kierrätyspisteeseen = to/into the recycling point

So the location relationship is built into the noun form itself.

Because Finnish often combines a general time and a more specific time.

Here:

• huomenna = tomorrow
• aamulla = in the morning

Together:

• huomenna aamulla = tomorrow morning

This is a very natural way to say it in Finnish. It moves from broader time to narrower time:

• when? tomorrow
• which part of tomorrow? in the morning

Aamulla is in the adessive case, and with times of day it commonly means in the morning.

Very common expressions are:

• aamulla = in the morning
• päivällä = in the daytime / during the day
• illalla = in the evening
• yöllä = at night

So huomenna aamulla is an everyday, natural way to say tomorrow morning.

You may also see forms like aamuna in other expressions, but aamulla is the most straightforward choice here.

No, Finnish word order is fairly flexible, because the endings show the grammatical roles.

This sentence has a neutral, natural order:

• Viemme lasia kierrätyspisteeseen huomenna aamulla.

But you could also say:

• Huomenna aamulla viemme lasia kierrätyspisteeseen.

That puts more focus on the time.

So word order in Finnish is often used for emphasis, topic, or style, not just grammar.

Yes. That is grammatically correct.

But in Finnish, the pronoun me is often left out because viemme already tells you the subject is we.

So:

• Viemme... = normal, natural
• Me viemme... = also correct, but a bit more explicit or emphatic

You might use me if you want contrast, for example:

• Te ette vie, mutta me viemme. = You are not taking it, but we are.

Viemme lasia kierrätyspisteeseen huomenna aamulla is good standard Finnish.

In everyday spoken Finnish, many people would use a more colloquial form, such as:

• Me viedään lasia kierrätyspisteeseen huomenna aamulla.

So:

• viemme = standard written / careful spoken Finnish
• me viedään = common colloquial spoken Finnish

If you are learning Finnish, the sentence you were given is an excellent standard model.