If you want to write something you're doing right now you have to take the -er in the verb and replace it with -iendo. Same with -ar verbs are replaced by -ando.
F.ex: Hablando Español. Which means I speak spanish (right now) as you might have guessed.
Spanish does distinguish against tenses such as preterite for completed past actions ending at a specific time or imperfect for when it happened a continuos number of times but not at a specific time. However german does not distinguish between tenses