Unethical, musician, antibody.
These are just prefixes and suffixes that match your descriptions.
If we say simple predicate, this only refers to the main verb that is used in the sentence. So based on the given sentence above, the simple predicate is the word "arrived" and this is the main verb which describes the subject which is "nurse". Hope this answers your question.
They usually have their roots in C, 'Latin and Greek'. Such words are - formula, amateur, arcane, incentive...
Try and put in Key details on your speech and why the vaccine helps as well as some components how the vaccine helps the immune system
