| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] therefore be [verb] | 580 |
|
| 2 | [modal v] therefore be [vb pp] | 554 |
|
| 3 | [modal v] [adv] be assumed | 143 |
|
| 4 | [modal v] therefore be assume | 6 |
|
| 5 | [modal v] therefore [be] assumed | 6 |
|
