impress
The German word 'beeindrucken' is a verb that means to impress or to make a strong and positive impression on someone. It is often used in the context of being impressed by someone's abilities, achievements, or qualities. For example, 'Er beeindruckt mich mit seiner Intelligenz.' means 'He impresses me with his intelligence.'
Your skills really impressed me.
In this sentence, 'beeindruckt' is used in its past participle form to express a state of being impressed. The speaker emphasizes this sentiment with the adverb 'wirklich' (really).
It's hard to impress him.
Here, 'beeindrucken' is used in an infinitive form following 'zu', to express the action of impressing him. The conjugation depends on the subject which is implied to be 'it'.
You don't have to try to impress us.
In this case, 'beeindrucken' takes the verb second position following 'zu', indicating the action of impressing. It is attached to 'versuchen' (try), to express the sense of attempting to impress.