Present Simple: 1) My mother often says she is tired after work. 2) Does your mother often say she is tired after work? 3) My mother doesn't say she is tired after work.
Past Simple: 1) He said the book was interesting. 2) Did he say the book was interesting? 3) He didn't say the book was interesting.
Future Simple: 1) She will introduce herself when she comes. 2) Will she introduce herself when she comes? 3) She will not introduce herself when she comes.
Present Simple: 1) My mother often says she is tired after work. 2) Does your mother often say she is tired after work? 3) My mother doesn't say she is tired after work.
Past Simple: 1) He said the book was interesting. 2) Did he say the book was interesting? 3) He didn't say the book was interesting.
Future Simple: 1) She will introduce herself when she comes. 2) Will she introduce herself when she comes? 3) She will not introduce herself when she comes.