Grammar--Parts of Speech and More

https://brians.wsu.edu/common-errors/ (Common Errors in English Usage)

http://www.grammarbook.com/ (Grammar Resource Site)

https://www.usingenglish.com/ (Grammar Resource Site)

https://www.englishgrammar.org/ (Grammar Resource Site)

http://www.butte.edu/departments/cas/tipsheets/grammar/parts_of_speech.html (Parts of Speech)

https://www.slideshare.net/yrlina/50-grammar-rules (Fifty Essential Grammar Rules)

https://www.englishclub.com/grammar/prepositions-list.htm (70 Common Prepositions in English--Out of Approximately 150)

https://blog.prepscholar.com/complete-list-parts-of-speech-for-sat-writing-and-act-english (Parts of Speech)

http://www.edb.utexas.edu/minliu/pbl/ESOL/help/libry/speech.htm (Parts of Speech)

https://owl.english.purdue.edu/owl/resource/730/1/ (Check out the list of prepositions.) 

http://www.edb.utexas.edu/minliu/pbl/ESOL/help/libry/speech.htm

http://www.englishforeveryone.org/Topics/Parts-of-Speech.htm

http://www.enchantedlearning.com/grammar/partsofspeech/

https://scholarmulhern.blogspot.com/2020/10/adverbs-and-adjectives-use-these.html (Use these questions to determine if a part of speech is an adverb or adjective.)

http://www.ereadingworksheets.com/languageartsworksheets/parts-of-speech-worksheets/

http://www.proprofs.com/quiz-school/story.php?title=8-parts-speech-test-practice

https://blog.prepscholar.com/sat-grammar-rules-you-must-know (The 12 SAT Grammar Rules You Must Know)

https://sites.google.com/a/djis.edu.sa/sat/writing/grammar-finding-error/common-errors-on-the-sat (Common Grammatical Mistakes on the SAT)