| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had [adv] been | 520 |
|
| 2 | which had [adv] been | 387 |
|
| 3 | which had [not/n't] been | 133 |
|
| 4 | which had not been | 133 |
|
| 5 | which had not been | 113 |
|
| 6 | which had previously been | 57 |
|
| 7 | which had previously been | 57 |
|
| 8 | which had already been | 55 |
|
| 9 | which had already been | 55 |
|
| 10 | which had once been | 40 |
|
| 11 | which had once been | 40 |
|
| 12 | which had always been | 25 |
|
| 13 | which had always been | 25 |
|
| 14 | which had never been | 24 |
|
| 15 | which had never been | 24 |
|
| 16 | which had originally been | 22 |
|
| 17 | which had originally been | 22 |
|
| 18 | which had hitherto been | 21 |
|
| 19 | which had hitherto been | 21 |
|
| 20 | which had n't been | 20 |
|
| 21 | which had long been | 18 |
|
| 22 | which had long been | 18 |
|
| 23 | which had just been | 14 |
|
| 24 | which had just been | 14 |
|
| 25 | which had [adj] been | 10 |
|
| 26 | which had only been | 9 |
|
| 27 | which had also been | 9 |
|
| 28 | which had [num ord] been | 9 |
|
| 29 | which had only been | 9 |
|
| 30 | which had also been | 9 |
|
