علي أن أحاول.

English Translation

I have to try.

The Arabic sentence “علي أن أحاول” can be broken down as follows:

علي: This is the preposition “on” or “upon”. In this context, it means that the obligation is on the speaker to do something.
أن: This is the conjunction “that”. It introduces a clause that expresses the content of the obligation.
أحاول: This is the verb “to try”. It is in the first person singular form, which means that the speaker is the one who is trying something.
The entire sentence can be translated as “I must try” or “I have to try”. It expresses the speaker’s obligation to make an effort to do something.