I’ve been looking in my textbook and notes, but I can’t seem to find all the information I need.

The question is:
What are the three types of RNA? WHat is the function of each type? During which steps of protein synthesis is each type used?

I know the three types are:
1. mRNA (messenger RNA)
2. rRNA (ribosomal RNA)
3. tRNA (transfer RNA)

I can’t seem to find what the function of each one is, and which step in protein synthesis they’re used in.
If you could help, that would be lovely.
Thanks!