$\text{1. }$

$\text{-) He doesn't go to school by bus everyday }$

$\rightarrow$ HTD - every day - S số ít - does (-) - V 

$\rightarrow$ S + do/ does + not + V 

$\text{?) Does he go to school by bus everyday? }$

$\rightarrow$ HTD - S số ít - câu hỏi - Đảo Does lên đầu - V nguyên 

$\rightarrow$ Do / does + S + V ? 

$\text{2. }$

$\text{-) We don't have English on Tuesday and Saturday }$

$\rightarrow$ HTD - sự thật - S số  nhiều - do (-) - V 

$\text{?) Do we have English on Tuesday and Saturday ?}$

$\rightarrow$ HTD - S số nhiều - câu hỏi - Đảo Do lên đầu - V nguyên 

   He goes to school by bus every 

→  negative: He doesn't go school by bus every day

→ interrogative: How does he go to school every day ?

   We have English on Tuesday and Sunday

→ negative: We haven't English on Tuesday and Sunday

→ interrogative: . What subjects do we have on Tuesday and Sunday