| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] is usually | 51 |
|
| 2 | [vb pp] [is] usually | 21 |
|
| 3 | [v-ing] [is] usually | 10 |
|
| 4 | [vb -s] [is] usually | 8 |
|
| 5 | [vb base] [is] usually | 5 |
|
