| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [that] | 4035 |
|
| 2 | is therefore [vb pp] | 247 |
|
| 3 | therefore [vb pp] [that] | 88 |
|
| 4 | is therefore [that] | 8 |
|
