1.I am calling to inform you about the time of the meeting
I am calling to let you know the time of the meeting.
2.The traffic accident was caused by the driver’s carelessness
The careless driver caused the traffic accident.
3.What type of film do you like to see this time
What kind of movie do you like to see this time?
4.I would be grateful if you could lend me some money
I would appreciate it if you could lend me some money.