كتبت الرقم غلط في الاستمارة، فالموظفة قالت لي اكتب الرقم تاني.

I wrote the number wrong on the form, so the employee told me to write the number again.

Breakdown of كتبت الرقم غلط في الاستمارة، فالموظفة قالت لي اكتب الرقم تاني.

• ال: the
• رقم: number
• انا: me
• في: on

Questions & Answers about كتبت الرقم غلط في الاستمارة، فالموظفة قالت لي اكتب الرقم تاني.

Why does the sentence start with كتبت instead of أنا كتبت?

Because Arabic usually does not need an explicit subject pronoun when the verb already shows who did the action.

• كتبت here means I wrote
• the ending -ت tells you it is first person singular in the past

So أنا is optional. You could say أنا كتبت for emphasis, but most of the time كتبت by itself is enough.

What does غلط mean here, and what part of speech is it?

غلط means wrong, incorrect, or by mistake.

In this sentence, it works like an adverb in English:

• كتبت الرقم غلط = I wrote the number wrong
• more naturally in English: I wrote the number incorrectly

In Egyptian Arabic, غلط is very common and flexible. It can also be used as a noun or adjective in other contexts:

• ده غلط = This is wrong
• فيه غلط = There is a mistake

Why is it في الاستمارة? English would usually say on the form.