| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [verb] [been] [v-ing] | 1988 |
|
| 2 | [verb] [been] [v-ing] [noun] | 1836 |
|
| 3 | [noun prp] [verb] [v-ing] [noun] | 450 |
|
| 4 | [noun prp] [verb] [been] [noun] | 220 |
|
