I regularly contact webmasters to alert them to grammar/spelling errors and broken links.
The following information is an excerpt from one of these emails, focusing on how to choose between the words ‘which’ and ‘that’.
Hey There …
I was referred to your site by ~~~~~ and think it’s great.
In reading the info about ~~~~~~ I found several typos and I’m guessing you aren’t a native English speaker.
In the text:
… there are several spelling mistakes: ~~~~~~~.
You also used the word “which” three times and each time should have used “that”.
Don’t feel bad — many native speakers don’t know why they pick the right one but here is a quick primer:
- “That” is used when the phrase is essential to the discussion and is never set apart with a comma.
- “Which” is used when the phrase is parenthetical and it is usually set apart with a comma.
- “She quietly opened the door that was green.”
‘That’ implies that she had a choice of doors and she deliberately chose the green one.
- “She quietly opened the door, which was green.”
‘Which’ indicates that the door’s color was just an observation. There may be one or many doors, we just don’t know.
I am not trying to be picky … All of this is just my offering to help support your mission.
Have a great day and keep up the good work!
~ Sunny (Renegade Grammarian)