| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have kept | 38 |
|
| 2 | it has keep | 19 |
|
| 3 | it 's keep | 13 |
|
| 4 | it had keep | 11 |
|
| 5 | it have to keep | 5 |
|
