`1.` He told me not to call him a champion.

`-` Câu tường thuật : S + told + O + not to V-inf/to V-inf

`2.` He asked me why I hadn't come to class the day before.

`-` Câu tường thuật : S + asked + O + wh + S + V(lùi thì)

`-` Lùi thì : QKD `->` QKHT

`-` yesterday `->` the day before

`1.` He told me not to call him a champion

`-` Câu gián tiếp dạng mệnh lệnh : 

S + told + O + (not) + to_V + O
`2.` He asked me why I hadn't come to class the previous day

`-` Câu gián tiếp dạng Wh_question:
S + asked + O + Wh_ +  S + V(lùi thì)

`-` lùi thì: QKĐ `->` QKHT

`-` yesterday `->` the previous day/ the day before