INFINITIVES

"In English, a verb's infinitive is its unmarked form, such as be, do, have, or sit, often introduced by the particle to. When this particle is absent, the infinitive is said to be a bare infinitive; when it is present, it is generally considered to be a part of the infinitive, then known as the full infinitive (or to-infinitive), and there is a controversy about whether it should be separated from the main word of the infinitive." (taken from http://en.wikipedia.org/wiki/Infinitive)



READINGS

http://www.chompchomp.com/terms/infinitive.htm
http://www.iei.uiuc.edu/structure/Structure1/inf_func.html
http://faculty.washington.edu/marynell/grammar/infini.html
http://www.myenglishteacher.net/infinitives.html

EXERCISES

http://a4esl.org/q/f/z/zz97mkm.htm
http://www.cityu.edu.hk/elc/quiz/infving.htm
http://www.towson.edu/ows/exerciseinfinitives.htm
http://www.ego4u.com/en/cram-up/grammar/infinitive-gerund/exercises?30