special的意思偏向於“特地，專門”的特別，可指有不同於同類的職能和某次行動的特定目的。
I came here specially to tell you that yon were the winner.
particular的意思偏向於“異常，非常”的特別，即指不同於往常的壹般情況，另外還有“挑剔”的意思。
The weather is particularly hot.
He is quite paticular about the food.
especial的意思偏向於“尤其”的特別，常在舉例說明前述觀點時使用。
Everyone is inclined to（傾向於） speak their dialects/his dialect（方言）, especially in southern part of China.