| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [verb] [prep] | 17603 |
|
| 2 | [verb] be [v-ing] [prep] | 6335 |
|
| 3 | have be [v-ing] [prep] | 6066 |
|
| 4 | [vb past] be [v-ing] [prep] | 2312 |
|
| 5 | had [be] [v-ing] [prep] | 1920 |
|
