| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] which have [adv] been | 197 |
|
| 2 | [noun pl] which have [adv] [been] | 105 |
|
| 3 | [noun pl] which had [adv] [been] | 81 |
|
| 4 | [noun pl] which have already [been] | 44 |
|
| 5 | [noun pl] which have previously [been] | 30 |
|
| 6 | [noun pl] which have never [been] | 15 |
|
| 7 | [noun pl] which have hitherto [been] | 14 |
|
| 8 | [noun pl] which has [adv] [been] | 11 |
|
| 9 | areas which have [adv] [been] | 9 |
|
| 10 | [noun pl] which have always [been] | 8 |
|
| 11 | [noun pl] which have recently [been] | 8 |
|
| 12 | ideas which have [adv] [been] | 7 |
|
| 13 | [noun pl] which have originally [been] | 7 |
|
| 14 | [noun pl] which have actually [been] | 6 |
|
| 15 | [noun pl] which have just [been] | 6 |
|
| 16 | [noun pl] which have long [been] | 5 |
|
| 17 | [noun pl] which have now [been] | 5 |
|
| 18 | [noun pl] which have often [been] | 5 |
|
| 19 | [noun pl] which have formerly [been] | 5 |
|
| 20 | [noun pl] which have once [been] | 5 |
|
