Complete the rules

• -sh
• -o
• -es
• -es
• -es
• -f
• -v
• -i
• -s

To make plural a noun ending:

• in -s, -ss, [ ], -ch, -x, [ ], we add the ending [ ];
• in [ ] or -fe, we change these letters into [ ] and add [ ];
• consonant + -y, we change the last one into [ ] and add [ ].

In all other cases, we add the ending [ ] to most of the nouns.