| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] during the [noun] | 56 |
|
| 2 | is [vb pp] during the [noun sg] | 55 |
|
| 3 | is used during the [noun] | 5 |
|
| 4 | is [vb pp] during the period | 5 |
|
| 5 | is [vb pp] during the period | 5 |
|
