Musíme zalévat sazenice.

We must water the seedlings.

Breakdown of Musíme zalévat sazenice.

• muset: must/to have to
• sazenice: the seedling
• zalévat: to water plants

Questions & Answers about Musíme zalévat sazenice.

Why is there no word for we in the sentence?

Because Czech usually leaves out subject pronouns when the verb form already shows who the subject is.

Musíme is the 1st person plural form of muset, so it already means we must / we have to.
If you want extra emphasis, you can add my:

My musíme zalévat sazenice. = We have to water the seedlings.

That sounds more contrastive or emphatic, not neutral.

What does each word do in the sentence?

The sentence breaks down like this:

• Musíme = we must / we have to
• zalévat = to water
• sazenice = seedlings

So the structure is:

muset + infinitive + object

That is a very common Czech pattern, just like English must water something.

Why is zalévat in the infinitive?

Because after a modal verb like muset, Czech normally uses the infinitive.

So:

• Musíme pracovat. = We have to work.
• Musím jít. = I have to go.
• Musíme zalévat sazenice. = We have to water the seedlings.

This works very much like English must + verb.

Why is it musíme specifically?