Noun-Verbs

 
Some words can be used both as 

 a noun and as a verb:
Snow – paint – tie – phone  - smoke – face – water – circle – 
mail – center – date -  experience – fair – fish – garden – mind – 
place – plant – promise – question – rain – rock – season – 
sense – shape – shop – star – tip – trip – value – smile – work – 
end – name – salt – rule – store – land – train – visit – fly - …

Some words can be used both as a noun 

and as an adjective:
 Newspaper – page – paper – apartment – key – city – duck – 
shoulder – people – traffic - …

When singular nouns end in s (James, Mars, … ), we have 2 
possible possessive forms :
James’s brother or James’ brother