Problem is singular, not plural. The plural form is problems.
The plural form for the noun alley is alleys.
The word than is not a plural noun. It's a conjunction.
The plural form for the noun parenthesis is parentheses.
The plural form for the noun hoe is hoes.
Yes, solutions is the plural form of solution.
The plural of engineer is engineers. As in "the engineers have resolved the problem".
Problems is a noun, the plural form of problem.
Yes, the noun problem is a count noun, the plural form is problems.Example: If you don't take care of the problemsoon, it will create new problems to deal with.
The plural of plumber is plumbers. For example: She had to call out three different plumbers before the problem was fixed.
The plural noun is halves.
The plural noun for path is paths. The plural noun for patch is patches.
The plural noun of general is generals. Generals is a regular plural noun.
No, Mice is a plural noun. Mouse is the singular noun.
It is a plural noun.
No, it is a possessive noun. Mothers is a plural noun.
The plural form for the noun lady is ladies.
The plural form of the noun newspaper newspapers.