How can I say "I am thinking of doing/going/..etc" in German?

Question

Answer

Hi, you have a beautiful verb in german for that: VORHABEN.
Examples: Ich HABE VOR, ihn morgen aufzusuchen; Ich HABE heute Abend etwas/nichts VOR.
You can also use the verbs PLANEN, BEABSICHTIGEN or TUN WOLLEN. The choice depends on the context.

Answer

There are lots of expressions. It really depends on the context. Juan has covered most of them.