Question

Negative form:
a) He tried to escape 
b) I stopped smoking when I was 30. 
c) When I was a child, I hated fish. 
d) We really enjoyed the concert​

Answer 1

a) He didn't try to escape  

b) I didn't stop smoking when I was 30.  

c) When I was a child, I didn't hate fish.  

d) We didn't really enjoy the concert​