| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [verb] [prep] | 17602 |
|
| 2 | [verb] be [v-ing] [prep] | 6304 |
|
| 3 | have be [v-ing] [prep] | 6061 |
|
| 4 | [vb past] be [v-ing] [prep] | 2310 |
|
| 5 | had be [v-ing] [prep] | 1920 |
|
| 6 | had [be] [v-ing] [prep] | 1919 |
|
