Jawabanmu

2014-05-21T14:17:01+07:00
Positif :
1. We are looking after dogs
2. Andi and hendra are playing basketball
negatif :
1. We are not looking after dogs
2. Andi and hendra are not playing basketball
2014-05-21T14:18:40+07:00
Untuk past continuous tense, 
1. We were looking after dogs / we were not looking after dogs
2. Andi and Hendra were playing basketball / andi and Hendra were not playing basketball

untuk present continuous tense
1. We are looking after dogs / we are not looking after the dogs
2. Andi and Hendra are playing basketball/ andi and hendra are not playing basketball