English : Addressing a few points arising from written work

Apostrophes
Omission - recap use and give examples where apostrophe is NOT used
- pain't, wi'll... Etc
Posession - confusion arising from pluralisation of nouns:
Dog
Dogs
Dog's
Dogs'
Dealing with the dropping of the second s when a word ends in s -
either plurals or nouns that end in s - Jesus'

Wh words
Who
What
When
Where
Why
Which
Whatever
Whenever
Etc....