| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] a significant increase | 16 |
|
| 2 | show a significant increase | 11 |
|
| 3 | [vb pp] a significant increase | 9 |
|
| 4 | [vb -s] a significant increase | 7 |
|
| 5 | [vb infin] a significant increase | 7 |
|
| 6 | [vb base] a significant increase | 5 |
|
| 7 | showed a significant increase | 5 |
|
| 8 | cause a significant increase | 5 |
|
