Can you add an s to et al?

French for 'and all'

When making reference to an item in the plural sense: He was looking out the window She was amazed at all the windows

Names are nouns, and they follow the same rules as any other noun when you are forming their plural. The basic rule is that you add an 's', and for exceptions to the rule you add an '-es'. There are...

Generally speaking, words that end in the following letter blends should be given an es: sh - e.g. dish/dishes ch - church/churches tch - scratch/scratches x - box/boxes z - buzz/buzzes ss -...

Nouns that end with 'f' or 'fe' are made plural by dropping the 'f' or the 'fe' and adding 'ves'. The plural for sheaf is sheaves.