$1$. My salary is low, however the job is hard
Although the job is hard, my salary is low
In spite of hard job my salary is low
$2$. We decided to buy this house, however we didn't have enough money
Despite not having enough money we decide to buy this house
Although we didn't have enough money. we decide to buy this house
$3$. He didn't pass the exam, however he worked very hard
Despite working very hard he didn't pass the exam
Although we worked very hard, he didn't pass the exam
