揣測某人的意圖 的英文怎麼說?

[1] to second-guess somebody/something[2] to guess what somebody will do[3] to predict what somebody will do

揣測或預言某人的意圖 = to second-guess somebody = to second-guess what somebody will do

例句的意思就是「他老是試著揣測老闆的意圖，但從未正確過」