The difference between "push" and "pushes" is something called conjugation, or how verbs change form. Here are the English conjugations of "to push":

I push
We push
You push
He/She/It pushes
They push

By contrast, verbs in the dragon language don't conjugate according to the subject at all. Here is a translation of the above list:

Zu'u dah
Mu dah
Rok/Rek/Nii dah
Nust dah

So, a final translation of that line may look something like this: Hi fen dah lot wah lein dah ko daal "You will push greatly to/against the world pushing in return."