| Novial | nov-000 |
| okasional | |
| Lingwa de Planeta | art-287 | buregulare |
| Sambahsa-mundialect | art-288 | irregular |
| English | eng-000 | intermittent |
| English | eng-000 | irregular |
| English | eng-000 | sporadic |
| Esperanto | epo-000 | foja |
| Esperanto | epo-000 | laŭokaza |
| Esperanto | epo-000 | neregula |
| Esperanto | epo-000 | sporada |
| Nederlands | nld-000 | intermitterend |
| Nederlands | nld-000 | sporadisch |
| Novial | nov-000 | intermitenti |
| русский | rus-000 | нерегулярный |
| русский | rus-000 | перемежающийся |