| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] been a [adj] | 896 |
|
| 2 | [noun sg] [verb] been a [adj] | 555 |
|
| 3 | system [verb] been a [adj] | 9 |
|
| 4 | system [verb] be a [adj] | 9 |
|
| 5 | system [verb] been a [adj] | 9 |
|
| 6 | system [verb] been [art] [adj] | 9 |
|
| 7 | system [verb] [be] a [adj] | 9 |
|
| 8 | system [verb] been [art] [adj] | 9 |
|
| 9 | system [verb] [been] a [adj] | 8 |
|
