Adjectives and Prepositions Examples



Hello, and thank you for your question.
Certain adjectives go with certain prepositions. Unfortunately, there are no rules for which adjective to use with which preposition. It is something that must be learned and remembered. A good idea would be to get the list of linked adjectives and prepositions and study them.
For the examples that you included, here are the prepositions linked to those adjectives:
'She's proud of her achievements'
'They're interested in learning new things'
I hope that the above helps you going forward.