The Word fall is a noun when referring to the time of year. It is a synonym of autumn, which is the season between summer and winter. Fall usually begins on September 22nd or 23rd and ends December 21st or 22nd. It is not considered a proper noun, so it doesn't require capitalization.
A proper noun; it is the name of the season.
no watch is a verb (watch that!) or a noun (she glanced at her watch to see what time it is)
Fall can be either. Noun: I hope the weather is nice this Fall. Verb: In November, the leaves will fall.
Fall can be used as a verb and a noun. Verb: e.g. to descend/move to a lower position. Noun: e.g. a reduction.
"Researchers" is not a verb; it is a plural noun referring to people who conduct research.
Diamond is a noun when referring to the hard form of carbon. It is an adjective when referring to something that has the shape of a diamond. It is a verb when used with an object, as in to adorn with diamonds
Falls is a verb form as: Things fall down. Falls is also a verb form as: Snow falls on hills. Falls is also a noun that means cascades - waterfalls. I visited the Niagra Falls.
Usually a verb, but it depends on how you are using it... if you are mounting something over again or mounting a horse for an additional time, then it is a verb. The word is also used as a noun, however, if you are referring to a horse used as a backup mount.
Walk can be a noun or a verb. Examples:As a noun: Do your walk before dinner.As a verb: If you walk down the hallway, the bathroom is on the left.
no it is a noun referring to a person on the soccer teams
No, it is a noun. "Invade" would be the verb.
No, "desk" is not a verb. It is a noun referring to a piece of furniture typically with a flat or sloped surface for writing or working.