83. A clause giving a cause or reason is introduced by "cxar", because,
for, or by the combination "tial ke", for this reason that, because,
for:
Mi venis frue, cxar mi volis vidi vin,
I came early, for I wished to see you.
La floroj velkis tial, ke ne pluvis,
the flowers wilted for this reason, that it did not rain.