| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he [vb past] study | 77 |
|
| 2 | he [vb past] studied | 41 |
|
| 3 | he had study | 39 |
|
| 4 | he [vb past] to study | 32 |
|
| 5 | he began study | 7 |
|
