| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has [not/n't] [been] | 982 |
|
| 2 | which has [adv] [been] | 554 |
|
| 3 | which have [not/n't] [been] | 351 |
|
| 4 | which [verb] [not/n't] [been] | 351 |
|
| 5 | [Wh det] has [not/n't] [been] | 150 |
|
| 6 | which has [not/n't] [be] | 137 |
|
| 7 | which has [not/n't] [been] | 136 |
|
| 8 | which [vb -s] [not/n't] [been] | 136 |
|
