Breakdown of Je älter der Mann ist, desto geduldiger wird er.
sein
to be
der Mann
the man
er
he
alt
old
werden
to become / to get (change of state)
der
who, which, that (relative pronoun; die, das)
je
the (in proportional comparisons)
desto
the (second part of proportional comparisons)
geduldig
patient
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