| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have be used for | 15 |
|
| 2 | [modal v] have been use for | 15 |
|
| 3 | [vb mod] have be use for | 15 |
|
| 4 | [modal v] have be use for | 15 |
|
| 5 | could have be use for | 6 |
|
| 6 | could have be use for | 6 |
|
| 7 | may have be use for | 5 |
|
| 8 | may have be use for | 5 |
|
