| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been a [adj] [noun] | 999 |
|
| 2 | have been a [adj] factor | 63 |
|
| 3 | [verb] been a [adj] factor | 63 |
|
| 4 | had been [art] [adj] factor | 14 |
|
| 5 | had been [art] [adj] factor | 14 |
|
| 6 | had been a [adj] factor | 13 |
|
| 7 | [vb past] been a [adj] factor | 8 |
|
| 8 | had be a [adj] factor | 8 |
|
| 9 | had [be] a [adj] factor | 8 |
|
| 10 | had been a [adj] factor | 8 |
|
| 11 | had [been] a [adj] factor | 8 |
|
