tell the difference

in which situation do we use each of these words
1.can(could) or be able to

"I can" means the same as "I am able to...", but is less formal, and more general in use.

2.made of/made from

these are pretty much interchangeable in normal usage

3.in time/on time

"I hope we can get there in time! (by a certain time, eg when the train leaves)

"The ship was completed on time and within budget" That is, it was built within the time alotted, to programme/program

in which situation do we use each of these words
1.can(could) or be able to