Case A
get (adj,)
become (adj.)
render (adj.)
都係解某樣野變得...............
e.g. It is getting cold these days.
Johnny becomes angry after knowing the vase was broken.
Case B
當adjective 形容名詞時, 唔使加"be"系動詞
e.g. When a kettle of water boils, hot steam comes out.
hot 形容 steam, 呢個情況之下唔須要加"be"系動詞