It takes a lot of time to cure this disease. You need to be extremely patient.

⇒ It takes a lot of time to cure this disease so you need to be extremely patient.

Anne is a gorgeous girl. She has a pleasant personality.

⇒ Anne is a gorgeous girl and she has a pleasant personality

It is raining hard. We postpone our boat trip.

⇒ It is raining hard so we postpone our boat trip.

He dreams of being the best student. He never studies hard.

⇒ He dreams of being the best student but he never studies hard.

My bicycle is broken. I have to take the bus to school.

⇒ My bicycle is broken so I have to take the bus to school.