| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [vb pp] | 29146 |
|
| 2 | is therefore [adv] | 357 |
|
| 3 | is therefore [vb pp] | 247 |
|
| 4 | therefore [adv] [vb pp] | 159 |
|
