Werden is a verb used for at least three different English
verbs. Have a look at these examples.
I become
a doctor. = Ich werde
Arzt. I become
president. = Ich werde Präsident.
I get crazy.
= Ich werde verrückt.
I get nervous.
= Ich werde
nervös.
Slowly he turned into a fly . = Allmählich wurde
er zu einer Fliege.
The German language describes almost every kind of change
with werden. So,
in this aspect it's actually quite easy, because there
is no need of too much thinking. If the question occurs
how to translate a sentence that has some kind of change
of condition of the subject or one of the objects the
right choice (in 99%) is werden.