Gerunds and Infinitives' main rules. Part 1.

Both gerunds and infinitives can be used as the subject or the complement of a sentence.


- Learning is important.
- To learn is important.
- The most important thing is learning.
- The most important thing is to learn.


However, as subjects or complements, gerunds usually sound more like normal, spoken English, whereas infinitives sound more abstract as you can see in the examples above. Actually infinitives emphasize the possibility or potential for something and sound more philosophical.