1) It is a long time since we last met.

→ We haven't seen for each other .

2) When did you have it ?

→ How long have you had it ?

3) This is the first time I had such a delicious meal .

→ I haven't had such a delicious meal before .

4) I haven't seen him for 8 days .

→ The last time I saw him was 8 days ago .       

5) I haven't taken a bath since Monday.

→ It is on Monday since I last took a bath .1) It is a long time since we last met.

→ We haven't seen for each other .

2) When did you have it ?

→ How long have you had it ?

3) This is the first time I had such a delicious meal .

→ I haven't had such a delicious meal before .

4) I haven't seen him for 8 days .

→ The last time I saw him was 8 days ago .       

5) I haven't taken a bath since Monday.

→ It is on Monday since I last took a bath .