a. L=w contains sub-string ab
complement of L=w does not contains sub-string ab
b. L=w contains sub-string baba
complement of L=w doesn not contains sub-string baba
c. L=w contains neither ba nor ab
d. L=w in a*b*
L=w not in a*b*
e. L=w in (ab+)*
L=w not in (ab+)*
f. L=w in a*+b*
L=w not in a*+b*
g. L=w has exactly 2 a's
L=w doesn't have 2 a's
h. L=w is ant string except 'a' and 'b'