| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [vb pp] for use | 31 |
|
| 2 | are [vb pp] for use | 31 |
|
| 3 | [am/are] intended for use | 9 |
|
| 4 | [am/are] designed for use | 8 |
|
