| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [be] [v-ing] at | 2637 |
|
| 2 | [pers pn] had [be] [v-ing] | 2417 |
|
| 3 | [pers pn] had [be] at | 149 |
|
| 4 | had [be] [v-ing] at | 148 |
|
