It depends on the context.
we are ----------------> nous sommes
you (all) are ----------> vous etes
they are (masculine)-->ils sont
they are (feminine) --->elle sont
This is of course only the plural present tense. To see all forms of the verb see link.
The plural of "bonjour" in French is "bonjours."
The plural of "agréable" in French is "agréables."
A sister is "une soeur" in French. The plural is "des soeurs".
The plural of "objet" in French is "objets."
The plural of "woman" in French is "femmes."
If you mean "miss" as in "madame", the plural is "mesdames".
The plural of "princess" in French is "princesses."
les is the plural for both articles 'la' and 'le' in French
The plural of egg in French is "œufs."
The French plural form of timid is timides.
The plural form of "glace" in French is "glaces."
The plural of "the school" in French is "les écoles."