You can always learn something on UU and for me that’s been the case with this thread. I’m not sure what I’ll do with either the split infinitive or ellipsis information, but sooner or later all education has value?
https://www.bristol.ac.uk/arts/exercises/grammar/grammar_tutorial/page_28.htm
Split infinitives.
The infinitive of a verb is the form given in the dictionary where no specific subject is indicated. In English it is always characterised by the word 'to':
e.g. to work, to pay, to eat, to find, to inhabit, to bribe...
A 'split infinitive' occurs when the 'to' is separated from its verb by other words. The most famous split infinitive comes at the beginning of every episode of Star Trek, when the crew's continuing mission is announced as: "to boldly go" (rather than "to go boldly").
The dots thing several posts above might be new to some people too. Here’s one meaning of an ellipsis.
https://www.grammarbook.com/punctuation/ellipses.asp
An ellipsis (plural: ellipses) is a punctuation mark consisting of three dots.
Use an ellipsis when omitting a word, phrase, line, paragraph, or more from a quoted passage. Ellipses save space or remove material that is less relevant. They are useful in getting right to the point without delay or distraction:
Full quotation: "Today, after hours of careful thought, we vetoed the bill."
With ellipsis: "Today … we vetoed the bill."