wǒmen míngtiān qù qíxíng.

A very common Mandarin pattern is:

subject + time + verb/action

So here:

• 我们 = we
• 明天 = tomorrow
• 去骑行 = go cycling

Mandarin usually puts time words before the main action. That is why 明天 comes before 去.

So 我们明天去骑行 sounds natural, while 我们去明天骑行 does not.

Mandarin often does not need a separate future marker when the time is already clear.

Because 明天 already means tomorrow, the sentence is naturally understood as a future action. So:

• 我们明天去骑行。 = We’re going cycling tomorrow / We will go cycling tomorrow.

You could add words like 会 in some contexts, but here it is unnecessary.

去 normally means to go.

In this sentence, it links naturally with the activity 骑行, so 去骑行 means something like:

• go cycling
• go out for a ride

It does not mean that 去 is just a future marker. It still keeps its basic idea of going to do something.

Yes, you often can.

• 我们明天骑行。 = We’re cycling tomorrow.
• 我们明天去骑行。 = We’re going cycling tomorrow.

The version with 去 can feel a little more like going out to do the activity, while the version without it simply states the activity more directly.

In everyday speech, both can work, depending on context.

骑行 usually means cycling or going for a bike ride.

It is related to 骑自行车, which more literally means ride a bicycle.

A rough comparison:

• 骑自行车 = to ride a bicycle
• 骑行 = to cycle / to go cycling

骑行 can sound a little more general or activity-focused, while 骑自行车 is more literal.

Mandarin does not use to be the same way English does.

In English, you say:

• We are going cycling tomorrow.

But in Mandarin, you do not need a verb like are before an action verb. Mandarin can simply say:

• 我们明天去骑行。

So this is completely normal grammar, not an omission.

It can sometimes be omitted if the subject is already understood from context.

For example, in conversation, if it is already clear who is being talked about, someone might just say:

• 明天去骑行。

That could mean We’re going cycling tomorrow, I’m going cycling tomorrow, or something similar, depending on context.

Mandarin often leaves out subjects when they are obvious.

Yes. In 骑行, 行 is pronounced xíng.

So the full pronunciation is:

• 骑行 = qíxíng

That is important because 行 has multiple pronunciations in Mandarin, such as xíng and háng, but in this word it is xíng.

A few helpful points:

• 我们 = wǒmen
  • 我 is third tone
  • 们 is neutral tone
• 明天 = míngtiān
  • both are first tone? Actually 明 is second tone and 天 is first tone
• 去 = qù
  • fourth tone
• 骑行 = qíxíng
  • both second tone

A useful pronunciation reminder:

• q in pinyin is not like English q
• It sounds more like ch said with the tongue positioned forward, somewhat like chee but not exactly

So:

• 去 sounds like chyoo-ish, with a sharp unaspirated Mandarin sound
• 骑 sounds a bit like chee but again with Mandarin q

Usually 明天 goes before the verb phrase, as in:

• 我们明天去骑行。

That is the most natural basic order.

Sometimes Mandarin time expressions can appear at the beginning for emphasis:

• 明天我们去骑行。

This also sounds natural and means the same thing, with slightly more focus on tomorrow.

It is neutral and natural.

• 我们明天去骑行。 sounds perfectly normal in everyday speech.
• 骑行 can sound a little more activity-oriented or slightly more deliberate than very casual 骑车, but it is not overly formal.

In very casual conversation, people might also say:

• 我们明天去骑车。

That is often understood as We’re going biking tomorrow.

That is a good question. On its own, 骑 often does take an object:

• 骑马 = ride a horse
• 骑自行车 = ride a bicycle

But 骑行 is a set word meaning to cycle / cycling. In that word, 骑 and 行 work together as one expression, so you do not need to add an object after it.

So here, 骑行 is not just 骑 by itself. It is a complete word.

Yes, absolutely.

• 我明天去骑行。 = I’m going cycling tomorrow.
• 我们明天去骑行。 = We’re going cycling tomorrow.

The rest of the sentence structure stays the same. Only the subject changes.