| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [Wh det] be | 409 |
|
| 2 | is what [be] | 377 |
|
| 3 | is [Wh det] [is] | 356 |
|
| 4 | is [Wh det] is | 286 |
|
| 5 | is [Wh det] 's | 70 |
|
| 6 | is [Wh det] [was/were] | 34 |
|
| 7 | is [Wh det] was | 31 |
|
| 8 | is which [be] | 30 |
|
| 9 | is [Wh det] [am/are] | 16 |
|
| 10 | is [Wh det] are | 15 |
|
