Translation of "Contradicts" in German

This contradicts all norms and rules.

Das widerspricht allen Normen und Regeln.

Thomas Pabst contradicts the theory of "Hessen Mobil" that

Thomas Pabst widerspricht der Theorie von "Hessen Mobil",

It doesn't matter what I say, she always contradicts me.

Egal was ich sage, immer widerspricht sie mir.

- What he said yesterday contradicts what he said last week.
- What he said yesterday conflicts with what he said last week.

Was er gestern gesagt hat, steht in Widerspruch zu dem, was er letzte Woche gesagt hatte.