Both singular and plural.
The word snow is both singular and plural like sheep.
neither, actually no dirt exist other than political
No, expedition is singular. The plural form is expeditions.
Yes, the word basement is a noun, a singular, common, concrete noun; a word for the floor of a building partly or entirely below ground level; a word for a thing.
Obviously it is tornadoes not tornados tornado is singular while tornadoes are plural
The word team is singular; the plural form is teams.
These is plural, this is singular
if a word refers to a single item it is singular. if it refers to lots of things it is plural."Potato" is singular "potatoes" is a plural word."mouse" is singular, "mice" is a plural word."person" is singular, "people" is a plural word.
The word "she" is singular, used to refer to one female person. It is the third-person singular pronoun for females.
The word "have" is a verb that can be used in both singular and plural contexts. In singular form, it can represent a single entity possessing something. In plural form, it can indicate multiple entities possessing something.
The word metastasis is singular, metastases is plural.
No, the word "list" is singular. The plural form of "list" is "lists."
Caveman is singular. Cavemen is plural.
It's singular. The plural is cafeterias.
Verbs cannot be singular or plural. Has is after singular nouns.
Tool is singular. Tools is plural.
Singular Plural is caterpillars