"Ik ga als jij gaat."
Translation:I go if you go.
It's a bit tricky putting a multiple choice before als or dan are introduced in isolation.
Can you not say Ik ga dan jij gaat.. as in I go than you go. I had to choose between als and dan and I was wandering if they both could possibly fit into this sentence
No, that doesn't really work. You can say "Ik ga, dan ga jij" (I go, then you go).
Also note that "als" en "dan" mean quite different things. However, they can be combined into the conditional structure "als .... dan ...." (if ... then ...).