| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] [prep] [noun] | 461 |
|
| 2 | [vb past] [be] [v-ing] [prep] [noun] | 461 |
|
| 3 | [vb past] [be] [verb] since [noun] | 46 |
|
| 4 | [verb] [be] [v-ing] since [noun] | 32 |
|
| 5 | [vb past] [be] [v-ing] since [noun] | 11 |
|
