| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] is by | 79 |
|
| 2 | [verb] [is] by | 79 |
|
| 3 | [vb pp] [is] by | 44 |
|
| 4 | [vb -s] [is] by | 9 |
|
| 5 | [to-vb] [is] by | 8 |
|
| 6 | [vb base] [is] by | 7 |
|
| 7 | [v-ing] [is] by | 7 |
|
| 8 | happen [is] by | 5 |
|
