Questions & Answers about Danas moramo čistiti stan.
How do we know moramo means 'we must' if there is no word for 'we'?
In Croatian, the subject pronoun (like mi for 'we') is usually dropped. The ending of the verb tells you who is doing the action. The -mo ending on moramo specifically means 'we must'.
Why does čistiti end in -ti here?
čistiti is in the infinitive form, which is the dictionary form of a verb (meaning 'to clean'). When you use a modal verb like morati (must), the second verb that follows it is usually in the infinitive.
stan is the object being cleaned. Doesn't it need to change its ending?
Yes, as the direct object, it is in the accusative case. However, stan (apartment) is a masculine inanimate noun (it is not alive). For masculine inanimate nouns, the accusative form is exactly the same as the base form (nominative). So it stays stan.
Could I put danas (today) at the end of the sentence instead?
Yes, Croatian word order is quite flexible. You could say Moramo čistiti stan danas. Putting danas at the beginning of the sentence just puts a little more emphasis on the fact that it has to be done today.