Question

A 2nd tone preceded by a 1st or 2nd tone and followed by another tonebecomes a 1st tone

Accepted Answer

Examples:三年级 (third grade): sān niánjí ⇒ ‘sān niānjí’谁来吃？ (who’s coming to eat?): shéi lái chī? ⇒ shéi lāi chī?特别难看 (especially ugly): tèbié nánkàn ⇒ tèbié nānkàn

Text	A 2nd tone preceded by a 1st or 2nd tone and followed by another tone becomes a 1st tone
Extra	Examples: 三年级 (third grade): sān niánjí ⇒ ‘sān niānjí’ 谁来吃？ (who’s coming to eat?): shéi lái chī? ⇒ shéi lāi chī? 特别难看 (especially ugly): tèbié nánkàn ⇒ tèbié nānkàn

Tone 2nd 1st Shéi Chī Tèbié Preceded Examples