First: what is an infinitive?
According to Grammar Girl, the goddess for this month's A to Z challenge, it is technically okay to split an infinitive by putting and adverb in between the to and the verb, but we should still avoid it as long as it doesn't change the meaning of the sentence.
To jauntily shake it is now approved. (As is to merrily dance, to snottily snort, and to speedily drive) But I'll continue to play it safe and to shake jauntily (to dance merrily, to snort snottily, and to drive speedily). What's your opinion on the split infinitive? To read Grammar Girl's detailed explanation, click here.
If I got anything wrong, feel free to correct me in the comments. If you're doing the A to Z challenge let me know and I'll come check it out.