| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be clear that a | 74 |
|
| 2 | [be] clear that a | 59 |
|
| 3 | [is] clear that a | 58 |
|
| 4 | is clear that a | 56 |
|
| 5 | [be] clear that an | 15 |
|
| 6 | was clear that a | 11 |
|
| 7 | [was/were] clear that a | 11 |
|
