Parts of Speech
Conjunctions
Match the grammar on both sides of a conjunction.
Why this happens
Conjunction mistakes include comma splices (joining two full sentences with only a comma), missing coordinators between related ideas, and faulty parallel structure after and/but/or. Writers also confuse subordinating conjunctions (because, although) with transitions (however, therefore), creating fragments or run-ons. Choosing the right linker shows logical relationships markers expect.
See it in a sentence
IncorrectThe trial ended early, the jury had already decided.
CorrectThe trial ended early because the jury had already decided.
Teaching note: Two independent clauses cannot join with only a comma — add because or use a semicolon.
IncorrectAlthough she was tired, but she finished the essay.
CorrectAlthough she was tired, she finished the essay.
Teaching note: Do not combine although and but — one subordinator is enough.
IncorrectHe likes not only swimming but also to hike on weekends.
CorrectHe likes not only swimming but also hiking on weekends.
Teaching note: After not only... but also, keep forms parallel (swimming / hiking).
More examples
Since you asked, I will explain — Since has been rainy, we stayed in.
Since can mean because or from a time — context must make the sense clear.
Neither the coach nor the players were happy.
Neither/nor pairs negatives; the verb agrees with the nearer subject (players were).
I will call you when I will arrive.
In time clauses with when, use present tense for future meaning: when I arrive.
Both the summary and the chart support the claim.
Both... and requires plural agreement when two subjects together are plural.
Quick check
I studied hard, however I still ran out of time.
Show the fix
I studied hard; however, I still ran out of time. However joins independent clauses best with a semicolon or period, not a lone comma.
Practice this topic in Wrytesmart
Open the grammar workspace to complete interactive exercises for conjunctions. You will spot errors, fill blanks, and transform sentences — always with teaching notes that explain the principle, not just the correction.
Master conjunctions in context
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