to have a very bad memory
ein sehr schlechtes Gedächtnis haben (ain zeer shlekhtes gedechnis haben)
"He forgets everything; he has a mind like a sieve."
"Er vergisst alles; er hat ein Gedächtnis wie ein Sieb." (er ferghist alles; er hat ain gedechnis vee ain zeeb)
something that seems promising at first but fails to deliver
Success often comes after learning from failures.
to be very close friends
my patience has run out
a technique used in AI to predict future trends based on his...
to speak at length about a topic