| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he must [verb] | 2168 |
|
| 2 | he must [vb infin] | 2166 |
|
| 3 | [pron] must learn | 118 |
|
| 4 | he [modal v] learn | 74 |
|
| 5 | he must learn | 9 |
|
