| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] there [is] a | 1151 |
|
| 2 | there [is] usually a | 104 |
|
| 3 | [noun sg] [is] usually a | 95 |
|
| 4 | [noun sg] there [is] usually | 16 |
|
