| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [v-ing] [adv] | 460 |
|
| 2 | be [vb pp] [v-ing] [adv prt] | 204 |
|
| 3 | be [vb pp] [verb] back | 175 |
|
| 4 | be [verb] [v-ing] back | 14 |
|
| 5 | [be] [vb pp] [v-ing] back | 10 |
|
| 6 | be [vb pp] [v-ing] back | 10 |
|
