私は長いあごひげを生やしたあのドイツ人を知っています。

I; me; private affairs; personal matter; secrecy; selfishness

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

long (distance); long (time); lengthy

beard (esp. on the chin); goatee

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to grow; to cultivate; to wear a beard

that (someone or something distant from both speaker and listener, or situation unfamiliar to both speaker and listener)

German person

to be aware of; to know; to be conscious of; to cognize; to cognise; to notice; to feel; to understand; to comprehend; to grasp; to remember; to be acquainted with (a procedure); to experience; to go through; to learn; to be acquainted with (a person); to get to know; to concern