The vocabulary for the PCAT really isn't that bad. I haven't seen the GRE box but I did take the GRE years ago and the PCAT vocab was downright easy compared to the GRE. It seems to me that it is more like the SAT level. And plus some of the analogies were weird. I had analogies on Greek and Roman gods and on foreign foods. I seriously thought there was some culture bias going on.
Okay, for verbal analogies, know your bridges between the words. There are things like part:whole, opposites, tool😛rofession, etc. The way you learn these is either by finding a book that tells you what they are or by finding practice tests with analogies and doing the tests. You will get a feel for them with enough practice.
For sentence completion, you have to be able to spot the words in the sentence that signal what is going in the blank. Underline words like although, but, despite, similarly, etc. You should try to find practice tests for these as well. I think this part was a lot more straight forward on the PCAT than analogies. You just have to spot the clues and guess which word fits. If you have a good feel for these, you can sometimes guess the correct word before you even see the answer choices. Finding tests to practice on should help with the vocab. Test makers like to repeat the vocab in this section for some reason so make sure you learn the words that trip you up.
