See https://duckduckgo.com/?q=english+grammar&ia=web ;
https://duckduckgo.com/?q=english+spelling&ia=web and for the lighter side:
* https://www.youtube.com/watch?v=8Gv0H-vPoDc
* https://shlomif.livejournal.com/53966.html
* http://i.imgur.com/HL1ZR.jpg .
-- Arthur Binstead
%
THE OLD POOL SHOOTER had won many a game in his life. But now it was time
-to hang up the cue. When he did, all the other cues came crashing go the floor.
+to hang up the cue. When he did, all the other cues came crashing to the floor.
"Sorry," he said with a smile.
-- Jack Handey, The New Mexican, 1988.