| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there have been a [adj] increase | 88 |
|
| 2 | there have been a [adj] increase | 88 |
|
| 3 | there have been a significant [noun] | 30 |
|
| 4 | there have been [art] significant increase | 8 |
|
| 5 | there have been [art] significant increase | 8 |
|
| 6 | there have been a significant increase | 6 |
|
| 7 | there have [been] a significant increase | 6 |
|
| 8 | [pron] have been a significant increase | 6 |
|
| 9 | there [verb] been a significant increase | 6 |
|
| 10 | there have been a significant increase | 6 |
|
| 11 | there have be a significant increase | 6 |
|
| 12 | there have [be] a significant increase | 6 |
|
