I basically went through the Realidades 1 (or A/B) book and picked out all the verbs from the vocabulary sheets for all the chapters. I typed them up 4 to a page in large font so you can print on card stock and slice up. I also included the subject pronouns - I recommend printing on another color card stock.
Here's how I always use them:
Have a student volunteer to be the subject cards. They hold one up while I hold up a verb card. The class shouts out the conjugation. Then I switch the verb card to another one. We keep switching until they can master the conjugations for that subject pronoun. Then we switch pronouns, and do more verbs. Once they get all the pronouns down, then both the student/teacher flip cards at the same time, making it more difficult.
You can also use these cards for conversation prompts. Put a handful of cards on the board with magnets, or under the document camera. Ask students to come up with a question using the verbs for their partner. Ask and answer using all the cards.
It is in Word so you can edit as needed.