Been is the past participle of the verb ‘be’ used with forms of have. Follow the link to find out more.
A pet scheme is a favourite project.
Example: Building the language library is my pet scheme.
Notice that because there is more than one trainee, the possessive apostrophe is used after the 's'. Follow the link for more.
Something that has paid off has proved profitable or successful.
Example: Hard work will eventually pay off.
For more meanings of the phrasal verb pay off
, follow the link below to our language library.