The marks that may be used as linking marks are:
- Semicolon
- Comma followed by a conjunction
- Colon
A semicolon can link two independent clauses, a comma followed by a conjunction (like "and" or "but") can link two independent clauses, and a colon can introduce a list, explanation, or clarification that is related to the preceding clause.
The question mark is typically used to indicate a question and is not used as a linking mark.