| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] | 200716 |
|
| 2 | is [vb pp] | 136581 |
|
| 3 | be assumed | 1518 |
|
| 4 | [be] assumed | 1518 |
|
| 5 | is assume | 578 |
|
| 6 | [is] assumed | 508 |
|
