Thank you for prompt reply.
The check marks on both detect language and do not check spelling/grammar are both clear. In the same set proofing language window , there are about 50 languages listed but I now see that all the English, French and Spanish have small abc checkmarks next
to them, meaning every country version for each of these languages has checkmarks like French Cameroon, Canada, Caribbean. All the other languages besides these three do not have abc checkmarks.
In Language Preferences, the editing language only shows English.
Can you please advise a way to uncheck French and Spanish, so that spellcheck does not indicate words are misspelled because it's comparing to French and Spanish language?