| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] been a [noun] | 948 |
|
| 2 | [noun] [verb] a constant [noun] | 59 |
|
| 3 | [verb] been a constant [noun] | 20 |
|
| 4 | [noun] [verb] been a constant | 15 |
|
