| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] about by a | 63 |
|
| 2 | [vb pp] about by a | 56 |
|
| 3 | bring about by a | 51 |
|
| 4 | brought about by a | 51 |
|
| 5 | about by a [adj] | 32 |
|
| 6 | about by a [adj] | 29 |
|
| 7 | about by a [noun sg] | 28 |
|
| 8 | about by a [noun] | 28 |
|
