The folllowing extremely common wordforms occur more than 250 times in the corpus, and are therefore omitted from the concordance to the entire corpus. They are, however, listed in the concordances for each individual text. The list below gives the wordform and its frequency in the corpus.
| wordform | frequency |
|---|---|
| a | 21 843 |
| yn | 18 095 |
| i | 17 528 |
| y | 17 250 |
| o | 8859 |
| ac | 8463 |
| r | 8362 |
| yr | 6088 |
| ar | 4099 |
| ei | 3439 |
| n | 3357 |
| mae | 3105 |
| ef | 2978 |
| ni | 2616 |
| am | 2475 |
| oedd | 2194 |
| na | 2099 |
| ond | 2062 |
| fy | 1875 |
| mi | 1861 |
| ag | 1856 |
| mewn | 1530 |
| nid | 1452 |
| yw | 1377 |
| un | 1309 |
| eu | 1279 |
| er | 1265 |
| wrth | 1216 |
| hyn | 1207 |
| hynny | 1204 |
| gan | 1162 |
| chwi | 1136 |
| m | 1116 |
| Duw | 1097 |
| hi | 1075 |
| fod | 986 |
| dy | 976 |
| yno | 925 |
| sydd | 910 |
| heb | 909 |
| hwn | 867 |
| ai | 822 |
| yma | 812 |
| pan | 783 |
| rhai | 783 |
| w | 779 |
| fe | 760 |
| hwy | 756 |
| wedi | 743 |
| bob | 741 |
| holl | 730 |
| os | 724 |
| bod | 721 |
| mor | 713 |
| fel | 712 |
| lle | 711 |
| ir | 685 |
| ein | 670 |
| ch | 663 |
| at | 661 |
| pa | 659 |
| hyd | 655 |
| mawr | 633 |
| arglwydd | 627 |
| vn | 625 |
| yna | 612 |
| beth | 608 |
| sy | 604 |
| di | 597 |
| amser | 596 |
| trwy | 586 |
| oes | 548 |
| byd | 539 |
| vy | 531 |
| Dduw | 529 |
| ol | 526 |
| llawer | 508 |
| neu | 502 |
| brenin | 499 |
| hynn | 498 |
| da | 497 |
| pob | 491 |
| gael | 490 |
| iddo | 484 |
| allan | 481 |
| eich | 476 |
| neb | 459 |
| gwr | 458 |
| dydd | 456 |
| nad | 455 |
| th | 453 |
| ddim | 442 |
| peth | 441 |
| dyn | 432 |
| ym | 431 |
| aeth | 426 |
| fi | 426 |
| hun | 419 |
| hen | 418 |
| brenhin | 415 |
| hon | 407 |
| ti | 406 |
| etto | 391 |
| or | 391 |
| efe | 390 |
| gyd | 389 |
| fal | 387 |
| iawn | 387 |
| val | 387 |
| bydd | 377 |
| oll | 375 |
| hwynt | 373 |
| u | 371 |
| s | 367 |
| hefyd | 365 |
| erbyn | 362 |
| cael | 358 |
| hwnnw | 355 |
| eraill | 354 |
| wyf | 354 |
| honn | 349 |
| dan | 348 |
| drwy | 347 |
| felly | 345 |
| achos | 340 |
| arall | 340 |
| fo | 340 |
| dda | 337 |
| ych | 337 |
| wlad | 327 |
| dim | 323 |
| hyny | 321 |
| hwnn | 320 |
| bu | 319 |
| lawer | 308 |
| wyr | 308 |
| fawr | 307 |
| meddwl | 306 |
| mab | 300 |
| ny | 295 |
| canys | 292 |
| mo | 284 |
| wnaeth | 284 |
| wir | 276 |
| gwyr | 275 |
| oni | 274 |
| sef | 274 |
| megis | 272 |
| awr | 267 |
| pwy | 267 |
| vod | 263 |
| rhag | 261 |
| pen | 260 |
| ryw | 258 |
| le | 253 |
| Arthur | 252 |
| velly | 252 |
| byw | 251 |
| rhyw | 250 |