Valid is an adjective, so it does not have a plural.
There is currently no accepted compound word. The name "wolf pack" is the valid form.
The plural form for the noun pass is passes.The plural possessive form is passes'.
No, because there are not 100 plural pronouns.The plural pronouns are:weusyou (can be singular or plural)theythemthesethoseouroursyour (can be singular or plural)yours (can be singular or plural)theirtheirsourselvesyourselvesthemselvesbothfewfewermanyothersseveralall (can be singular or plural)any (can be singular or plural)more (can be singular or plural)most (can be singular or plural)none (can be singular or plural)some (can be singular or plural)such (can be singular or plural)
IT IS A THEORY OR PREDICATION TO ASK QUESTIONS AND EXPLORE OPTIONS an example am I on a planet with a positive gravity I have a hypothesis that i am so to test this I drop an object and if it hits the ground then my hypothesis is valid if it floats in air then it is not valid and I have to rethink my hypothesis
The plural of "she" is "they", so the plural of "she had" is "they had".
The comings and goings of the president' is a valid use of a plural gerund. It is possible for gerunds to be plural despite how uncommon that is.
The plural of fish is fish or fishes, both are valid.
The plural of a letter can be written using an apostrophe, which is usually not a valid way to form a plural. The plural spelling S's could also be a possessive, but Ss would probably be unclear. The phonetic version is esses, which is the plural of ess.
There is currently no accepted compound word. The name "wolf pack" is the valid form.
Stegosauruses is valid (http://en.wiktionary.org/wiki/stegosauruses), but so is Stegosaurus (http://www.memidex.com/stegosaurus+reptile-genus). The same way Fish and Fishes are both valid. Usage is the same as well.
The connecting letter should be able to create a valid word acceptable in the scrabble game.
The plural form of amoeba is amoebas or amoebae.
It is, yes. If you had a tank with two different catfish species in, 'catfishes' would be a valid term to use, for example. "These catfishes live together in the tank."
Transfer by a valid deed.Transfer by a valid deed.Transfer by a valid deed.Transfer by a valid deed.
The number (singular/plural) of the pronoun "them" does not agree with the reference subject with is "visa". Either the subject changes to plural (Tourist visas), or the pronoun changes to "it".
The plural form for the noun pass is passes.The plural possessive form is passes'.
No, because there are not 100 plural pronouns.The plural pronouns are:weusyou (can be singular or plural)theythemthesethoseouroursyour (can be singular or plural)yours (can be singular or plural)theirtheirsourselvesyourselvesthemselvesbothfewfewermanyothersseveralall (can be singular or plural)any (can be singular or plural)more (can be singular or plural)most (can be singular or plural)none (can be singular or plural)some (can be singular or plural)such (can be singular or plural)