No. It is an idiomatic compound conjunction (legal-ese) meaning "if" or "should."
No, the word "when" is not a preposition. It is an adverb or a conjunction used to indicate time or a condition.
"Remain" is not a preposition. It is a verb that means to stay in the same place or condition.
No, it is not a preposition. It is a form of the pronoun who.
No, it is not a preposition. It is a verb (to have: to possess or exhibit) It is an auxiliary verb for the "perfect" tenses (have, has, had, will have).
No, it is a conjunction. The usage as a preposition to mean "except" is generally considered archaic.
No. Condition is a noun, and can be a verb. But it cannot be a preposition.
No, the word "when" is not a preposition. It is an adverb or a conjunction used to indicate time or a condition.
"Remain" is not a preposition. It is a verb that means to stay in the same place or condition.
No, it is not a preposition. It is a form of the pronoun who.
No, it is not a preposition. It is a verb (to have: to possess or exhibit) It is an auxiliary verb for the "perfect" tenses (have, has, had, will have).
No, it is a conjunction. The usage as a preposition to mean "except" is generally considered archaic.
No, "again" is not a preposition. It is an adverb that typically indicates repetition or a return to a previous position, action, or condition.
The word 'condition' is a noun, object of the preposition 'in'.
No, it is not. It is an adjective (prepared) or a verb (to make ready, to prepare).
No, "is" is not a preposition. It is a verb used in the present tense to indicate the state or condition of something or someone. Prepositions are words that show the relationship between a noun or pronoun and other words in a sentence.
No. Maintained is the past tense and past participle of a verb (to maintain). It cannot be a preposition.
Words like green, clean, seen etc. rhyme with preen.