No, the word 'rains' is a verb and a noun.
Examples:
It always rains on the day I wash my car. (verb)
The annual rains will come soon. They start this time of year. (noun; the pronoun 'they' takes the place of the noun 'rains' in the second sentence)
"When" is a subordinate conjunction, "it" is a pronoun, and "rains" is a verb.
Impersonal pronouns are used as the subject of impersonal verbs viz., It rains.
The verb form of "rains" is "rain." For example, "It rains often in this region."
The pronoun her is an object pronoun; for example:We see her everyday.
A pronoun's antecedent is the noun or pronoun that a pronoun replaces.
"When" is a subordinate conjunction, "it" is a pronoun, and "rains" is a verb.
Impersonal pronouns are used as the subject of impersonal verbs viz., It rains.
it rains
Jessica Rains's birth name is Jennifer Rains.
the rains
when it rains it snows
For When It Rains was created in 1994.
Traver Rains's birth name is Traver Douglas Rains.
Claude Rains's birth name is William Claude Rains.
"Them" is a personal pronoun and is typically used as an object pronoun, referring to people or things being spoken about. It is not a possessive pronoun like "theirs" or "theirs."
Luce Rains is 6'.
Dominic Rains is 6'.