let's review grammar

1they buy a beatiful house

 *they  are buying a beautiful house

*.they bought a beautiful house

*.they will buy beautiful house

*.they have bought  a beautiful house

2.do you speak japanese very well?

*do you is speaking  japanese very well?

*do you spoke japanese very well?

*do you will speak japanese very well?

*do you has spoke japanese very well?

3. she doesn't eat cereal for breakfast

*she doesn't is eating cereal for breakfast

*she doesn't ate cereal for breakfast

*she will doesn't eat cereal for breakfast

*she doesn't has ate cereal for breakfast

4.does he drink beer?

*does he are drinking beer?

*does he drinked beer?

*does  he will drink beer?

*does he has drank beer?

5.we clean our room everyday 

*we are cleaning our room everyday 

*we cleaned our room everyday

*we will clean our room everday 

*we have cleaned our room everyday