| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there have been [adv] a | 69 |
|
| 2 | there have [been] quite a | 39 |
|
| 3 | there has [been] [adv] a | 26 |
|
| 4 | there have [been] only a | 16 |
|
| 5 | there have [been] [adv] a | 14 |
|
| 6 | there 's [been] [adv] a | 14 |
|
| 7 | there had [been] [adv] a | 10 |
|
