two pairs of shoes is slightly more common, but either is correct.
From dictionary.com:
When used without a modifier, pairs is the only possible plural: Pairs of skaters glidedover the ice.
When modified by a number, pairs is the more common form, especially referring to persons: Six pairs of masked dancers led the procession.
The unmarked plural pair is used mainly in reference to inanimate objects or nonhumans: He has three pair (or pairs) of loafers. Two pair (or pairs) of barn owls have nested onour property.
Your Thesaurus will offer many alternate names for a pair, a twin, or a couple.
I don't see where the number of pairs of shoes has any relevance. I am a guy, and I probably have 7 or 8 pairs of shoes. I have a couple of pairs of dress shoes, 2 or 3 pairs of sneakers, a pair of moccasins, a pair of sandals, and probably some more in a closet.For me, rotating my shoes on a daily basis (not wearing the same pair two days in a row) helps my feet stay healthy.
Two pairs Is the answer.
two pairs of glasses
Open a woman's closet and you may find over twenty pairs of dress shoes for every occasion. Open a man's and you might find two. Ideally, men need at least two pairs of dress shoes: a black pair and a brown pair. A fashion savvy man may have a pair of lace up shoes and a pair of loafers. The key is to take good care of the shoes by protecting them with polish.
In a poker game, "two pair" refers to having two sets of pairs in your hand, while "two pair vs two pair" means comparing two hands with the same two pairs.
You would need two pairs. One pair for you and one pair for your friend.
'Two pairs of pants' is correct.
Some nouns that stay the same when used in the plural are:aircraftcorpsdeerheadquartersmathematicsoffspringpoliceseriessheepswineAnother group of nouns that doesn't change when plural are the nouns that are short for 'a pair of'. Most of the time we don't use the entire phrase, we just use the noun; for example:one pair of binoculars, two pairs of binocularsone pair of glasses, two pairs of glassesone pair of pajamas, two pairs of pajamasone pair of pants, two pairs of pantsone pair of shorts, two pairs of shortsone pair of scissors, two pairs of scissorsone pair of tongs, two pairs of tongsone pair of trousers, two pairs of trousersone pair of tweezers, two pairs of tweezers
There is a singular and plural form for the noun tongs. The word tongs is actually a shortened form for 'a pair of tongs' (singular), or pairs of tongs (plural). Examples of other shortened forms for 'a pair of' are:a pair of binoculars, two pairs of binocularsa pair of glasses, two pairs of glassesa pair of pajamas, two pairs of pajamasa pair of pants, two pairs of pantsa pair of scissors, two pairs of scissorsa pair of shorts, two pairs of shortsa pair of tweezers, two pairs of tweezersThe part of the term is used alone (tongs) because the rest of the term is understood. This form of singular and plural only applies to things that are made by joining two parts to make a single object. For example you can separate a pair of shoes or a pair of socks and you will still have a usable shoe or sock; but if you separate a pair of tongs, or pants, or scissors, they're not of much use.
The noun 'tongs' is one of a group of nouns sometimes called 'binary nouns', a word for things that require two halves to form a whole object. The binary nouns, like tongs are both singular and plural because they are a shortened form for 'a pair of'. Some examples:a pair of tongs; two pairs of tongsa pair of scissors; two pairs of scissorsa pair of tweezers; two pairs of tweezersa pair of pants; two pairs of pantsa pair of shorts; two pairs of shortsa pair of pajamas; two pairs of pajamasa pair of binoculars; four pairs of binocularsa pair of glasses; two pairs of glasses
which two pairs of muscles are antagonistic pairs?