| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it must [vb infin] | 88 |
|
| 2 | [subord] it must [vb infin] | 88 |
|
| 3 | [subord] it must have | 52 |
|
| 4 | as it must [vb infin] | 24 |
|
| 5 | so it must [vb infin] | 18 |
|
| 6 | because it must [vb infin] | 9 |
|
| 7 | though it must [vb infin] | 8 |
|
| 8 | although it must [vb infin] | 7 |
|
