| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] be [v-ing] [prep] | 23 |
|
| 2 | [vb past] have [be] [v-ing] [prep] | 16 |
|
| 3 | [vb past] [verb] been [v-ing] [prep] | 16 |
|
| 4 | [vb past] [verb] [been] [v-ing] [prep] | 16 |
|
| 5 | [vb past] to have [be] [v-ing] [prep] | 10 |
|
| 6 | [vb past] [to-vb] [be] [v-ing] [prep] | 10 |
|
| 7 | [vb past] [vb pp] [be] [v-ing] [prep] | 7 |
|
| 8 | [vb past] [verb] [was/were] [v-ing] [prep] | 7 |
|
| 9 | [vb past] [verb] was [v-ing] [prep] | 6 |
|
| 10 | [vb past] [vb past] [be] [v-ing] [prep] | 6 |
|
| 11 | had [verb] [be] [v-ing] [prep] | 6 |
|
| 12 | [vb past] had [be] [v-ing] [prep] | 6 |
|
| 13 | seemed [verb] [be] [v-ing] [prep] | 6 |
|
| 14 | [vb past] [verb] [be] [v-ing] in | 5 |
|
| 15 | [vb past] [verb] [be] [v-ing] for | 5 |
|
