Just Memorize These Verbs

There are a number of common irregular verbs. Here is a short list of the most common irregular verbs that will need to be memorized:

TO BE
TO SEE
TO HAVE
TO TEACH
TO FIGHT
TO CATCH
TO RUN

from Grammarly Blog
http://www.grammarly.com/blog/2015/just-memorize-these-verbs/