Ich muss lange scrollen, weil in der Cloud noch viele alte Dateien gespeichert sind.

I have to scroll for a long time because many old files are still saved in the cloud.

Breakdown of Ich muss lange scrollen, weil in der Cloud noch viele alte Dateien gespeichert sind.

• sein: to be
• in: in
• ich: I
• lange: long

Questions & Answers about Ich muss lange scrollen, weil in der Cloud noch viele alte Dateien gespeichert sind.

Why is it ich muss and not ich müssen?

Because the subject is ich, so the modal verb müssen has to be conjugated in the 1st person singular:

• ich muss
• du musst
• er/sie/es muss
• wir müssen

So Ich muss lange scrollen means I have to scroll for a long time.

Why is scrollen at the end of the first clause?

Because müssen is a modal verb. In German, when you use a modal verb with another verb:

• the conjugated modal verb goes in the normal verb position
• the main verb stays in the infinitive at the end of the clause

So:

• Ich muss scrollen.
• Ich muss lange scrollen.

That is the normal pattern.

What does lange mean here?

Here lange is an adverb, not an adjective. It means something like:

• for a long time
• quite a while
• sometimes more loosely a long way down

In this sentence, it means the speaker has to keep scrolling for quite a while before reaching what they want.