Gerunds & infinitives

Hi, everyone.
Here we have some links to keep working with gerunds and infinitives if you are interested in:

http://www.perfect-english-grammar.com/gerunds-and-infinitives-exercise-1.html

http://www.perfect-english-grammar.com/gerunds-and-infinitives-exercise-2.html

http://www.perfect-english-grammar.com/gerunds-and-infinitives-exercise-3.html

Tom has also strongly recommended English Grammar in Use, pages 53 to 68.