Just make a card with six or nine squares and fill in the verbs you have taught your students.
There are also more games you can do with your students besides Bingo. For example, I always put them in a line, when the class begins or when the class ends, and ask them a verb (I say the infinitive and they must say the past tense of it). If they say it right, they can come in (or get out), if they don�t, they must go to the end of the line. They just love this game!
Another thing I do is to write the infinitive of verbs in small pieces of paper (one in each), fold the papers and put them in a bag. The students take one and have to read it aloud, then they must say the past tense of it. If they say it right, I give them a small candy.
These are just to tips. They work with my students. Hope they work with yours too!
Good luck!
Ana