| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be [vb pp] [prep] [v-ing] | 1085 |
|
| 2 | be [vb pp] [prep] [be] [v-ing] | 931 |
|
| 3 | [adv] be [vb pp] [prep] [be] | 536 |
|
| 4 | [adv] [vb pp] [prep] [be] [v-ing] | 152 |
|
