He was so timid in love, so he lost her -> If....

$\text{Answer:}$

He was so timid in love, so he lost her.

$\rightarrow$ If he hadn't been so timid in love, he wouldn't have lost her.

$\rightarrow$ Trans: Nếu anh ấy không rụt rè trong tình yêu, anh đã không đánh mất cô ấy.

$\rightarrow$ Câu điều kiện số 3: If +S + had +Vpp/V-ed, S +would + have + V3/V-ed.

$\text{#Pea}$