The infinitive is the form of the verb made by adding ‘to’ to its STEM:
Example: to go.
Some traditionalists say that you should never place anything between the ‘to’ and the stem. They argue that since the infinitive is a part of the verb, it should never be split. So it is wrong to say ‘to boldly go’. You should instead say to go boldly or boldly to go.
There is no grammatical justification to this so called rule and people have been splitting infinitives for centuries. Indeed sometimes it is impossible to convey your meaning unless you do split an infinitive. For example:
Everyone else thought they were too young to really cope with adult responsibilities.
If you move really to another position you change the meaning of the sentence.
Everyone else thought they were too young really to cope with adult responsibilities.
Everyone else thought they were too young to cope really with adult responsibilities.
This post is courtesy ‘Oxford A-Z of grammar and punctuation by John Seely.
This post is a part of the APRIL A-Z Challenge