| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been an | 1643 |
|
| 2 | [verb] been an | 1643 |
|
| 3 | [vb -s] been an | 628 |
|
| 4 | has been an | 559 |
|
| 5 | [vb past] been an | 517 |
|
| 6 | had been an | 501 |
|
| 7 | [vb infin] been an | 323 |
|
| 8 | have been an | 321 |
|
| 9 | [adv] been an | 275 |
|
| 10 | [adv] been an | 218 |
|
| 11 | to have been an | 86 |
|
| 12 | [to-vb] been an | 86 |
|
| 13 | 's been an | 69 |
|
| 14 | [vb base] been an | 68 |
|
| 15 | always been an | 65 |
|
| 16 | always been an | 65 |
|
| 17 | [not/n't] been an | 57 |
|
| 18 | not been an | 57 |
|
| 19 | have been an | 56 |
|
| 20 | not been an | 39 |
|
| 21 | [pron] been an | 23 |
|
| 22 | having been an | 21 |
|
| 23 | [v-ing] been an | 21 |
|
| 24 | never been an | 18 |
|
| 25 | [noun] been an | 18 |
|
| 26 | never been an | 18 |
|
| 27 | n't been an | 18 |
|
| 28 | also been an | 17 |
|
| 29 | also been an | 17 |
|
| 30 | 'd been an | 16 |
|
