what is a plural occlusion?
487625
Nope - Pleural occulsion usually refers to the blockage in a catheter in the pleura - the pleura are the two layers around the lungs
208000
making it plural by adding "s" or "es"
1056595
"Clever clogs" is both the singular and the plural! It's like sheep. That's both singular and plural. Or trousers! You don't have one trouser (or at least I've never seen one!)
919641
Object of a preposition.
290822
It's a slang contraction.
669867
It would be usual to say "equipment is".\n\nTheoretically we could say "equipments are" \nand the plural form is accepted in the Scrabble world.
695722
Braces.\n\nBrackets are [ ] and parens (parenthesis) are ( ).\n\nThey are sometimes refered to as "Curly Brackets" or "curly braces".
268067
First of all, it's coup de grace (with a circumflex over the a). The plural is coups de grace.\n\nIt's French and literally means "stroke of mercy." "Coup" means "stroke" in French, so the plural would be "strokes of mercy" or "coups de grace."
954273
both one is singular, the other plural\n\n:> peace\n.
621262
D is the correct answer because the muffler together with the spark plugs make the subject of the phrase plural, making the verb "need" correct.
589864
Tooth\n\nString\n\nOpen Door\n\nSlam door close\n\nYou will need to fill in the blanks.
1078571
Where! Where! Aaaaaaargh!\n\nno\n\n\nPS Well done for getting the plural right.
316077
Person is singular\npeople is plural
1133499
The correct answer is your second phrase: "Three dogs' bowls".\nThe rule, in this case, is to simply add the apostrophe to the end of any plural noun ending in -s. The conventions for  apostrophe use in English are complicated at times. The first link below should help you out.\n\nThe apostrophe is used to indicate where an historical letter has been removed. In Olde English, 'a dog's bowl' would have been written as 'a doges bowl', but in an effort to tidy up orthographic (writing) conventions, and minimise confusion the E was removed and replaced with an apostrophe.
586016
tu is singular, 2nd person\nvous is plural, 2nd person, or a formal way of addressing someone
580707
It could either be a misspelling of OOPS or I saw OPPs as an abbreviation earlier tonight meaning OTHER PEOPLES PROPERTY!  Not sure what it meant in your experiences.
826083
It's a plural word usually - les cheveux.  Not to be confused with les chevaux, which means Horses.  Singular is le cheveu, basically that's a strand of hair.