121) ~に相違ない
~must be so.
~is definitely the case.
Undoubtedly, ~.
If you know that "相違" (そうい) means dissent, difference, and other negating words, this one comes naturally. Another note - this is a very formal way of saying it, so save it for your boss. We have one for your friends down the page.

122) ~に沿って (~にそって)
along with ~
parallel to ~
This one can be used with both physical and intangible things. You can go alongside the river to the ocean just as well as you can follow along with fashion trends.

123) ~に対して ・ ~に対する (~にたいして・する)
towards~
to~
for~
Lots of potential uses for this guy. The fact that one of the definitions is simply "~に" should emphasize how many different potential uses you're looking at. Not sure how to clarify it down any more than that...

124) ~に違いない (~ちがいない)
There's no mistake that ~
~ is definitely the case.
This one lends itself to easy explanation, since "違う" just means "wrong". So "違いない", but a tiny leap of imagination, can mean naught but...well... "not wrong". This is the less formal equivalent of number 122, and arguably the easier remembered of the two.

125) ~について
about ~
concerning ~
Anybody who reads this page enough undoubtedly knows this grammar point already, or at least they should since I'm certain I've used it multiple times in example sentences. Arguably the less formal form of "に関する", this phrase's pre-built-in "て" makes it easy to verb about something. For example, "何々について書く" is "to write about something, "何々について考える" is "to think about something". It's naturally not limited to this use, but it's good to know nonetheless.

Aannnd that wraps up Tuesday, even thought today is a national holiday. I swear, the things I do sometimes for you people...
As ever, your comments and feedback are appreciated. Feel free to guess the exact words that led to these images getting found. The award for our winner - MORE GRAMMAR POINTS!