existen muchisimos vervos irregulares!! te mando algunas oraciones con algunos de ellos! :) 

1) they bought their house three years ago.

2) my parents went to the cinema yesterday.

3) i haven¨t seen mary since her birthday party.

5) I went to the park yesterday and sow on shakira concert.

6) did he eat hamburguers? yes, he did.

7) I went to mendoza last summer and I visited a weneyard but I didn¨t buy any wive.

8) I haven¨t had lunch yet.

9) My sister saw the last tom cruse is film yesterday. 

10) bruce bought a new a car last month, but he hasn¨t recived it yet.