A tag question is a short question added to the end of a statement to check or confirm information. The basic rule: positive statement → negative tag, negative statement → positive tag. The tag uses the same auxiliary verb as the statement.
Subordinating conjunctions connect a main clause to a subordinate clause. The subordinate clause can come before or after the main clause. When it comes first, use a comma after it. This section covers the conjunctions that go beyond basic and / but / or — the ones that express contrast, reason, purpose, condition, and precaution.
| Meaning | Conjunctions | Example |
|---|---|---|
| Contrast | although, even though, while | Although it was cold, we went for a walk. |
| Reason | because, since, as | She left early because she was tired. |
| Purpose | so that, in order to | He studied hard so that he could pass. |
| Condition | if, as long as, provided that | You can go as long as you are back by ten. |
| Negative condition | unless | I will not go unless you come with me. (= if … not) |
| Precaution | in case | Take an umbrella in case it rains. |
English word order is strict. Adverbs of different types have fixed positions. The general order is: Subject → (Auxiliary) → (Frequency) → Verb → Object → Manner → Place → Time.
Sentence connectors (discourse markers) link two separate sentences. Unlike subordinating conjunctions, they are not followed by a clause attached to the main verb. They are typically followed by a comma.