| Case | Singular | Plural |
|---|---|---|
| nom | heterosexualita | heterosexuality |
| gen | heterosexuality | heterosexualit |
| dat | heterosexualitě | heterosexualitám |
| acc | heterosexualitu | heterosexuality |
| voc | heterosexualito | heterosexuality |
| loc | heterosexualitě | heterosexualitách |
| instr | heterosexualitou | heterosexualitami |