Today we will learn about whether "for" is a conjunction or not.Let me remind you that a conjunction can join two clauses. Now analyse the following example: ●He found it very hard to read,for his eyes were failing. Explanation: ●Clause +Conjunction+ Clause. ●Clause=Sub.+Verb+Extension ●He found it very hard to read,for his eyes were failing. Here,First clause=He found it very hard to read. Second Clause= his eyes were failing. For=Conjunction=Because(meaning) Since "for" is connecting two clauses,that is why the word "for" is a conjunction here. Conclusion: Yes,the word" for" is a conjunction.Besides,the word "for"can function as a preposition. Recommended Posts: ◆ Compound Sentences with For