Simple singular binary markets for each question

Large multiple choice markets with many related questions

Resolve N/A if the required condition isn't met

Resolve NO if the required condition isn't met

Resolve inverted (if-and-only-if; "IFF" / "XNOR") if the required condition isn't met

Resolve to partial (PROB) if the required condition isn't met

Resolve to closing price (MKT) if the required condition isn't met

2x2 (or larger matrices) dependent multiple choice for every possible outcome of one question

Resolve to poll if the required condition isn't met

Nesting conditionals that merge existing simpler markets into combined questions

Conditionals with backstop metamarkets that will resolve differently in case of N/A

Conditionals that are reframed as numerics, buckets, or other alternative types to elide the issue as much as possible

Non-resolving markets (if the condition isn't met, they instead stay open indefinitely for future chances rather than shortcut to one of the resolutions above)