Putonghua Tone 2 generally corresponds to Cantonese Tone 4

tones2

Examples

Hanyu Pinyin characters Jyutping English
línshí 臨時 lam4 • si4 temporary
tóngqíng 同情 tung4 • cing4 sympathy
tíqían 提前 tai4 • cin4 in advance
yuánlái 原來 jyun4 • loi4 originally

*For detailed comparison, click here