| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] used [prep] | 1440 |
|
| 2 | [is] used [prep] | 1440 |
|
| 3 | [is] [verb] throughout | 131 |
|
| 4 | [is] [vb pp] throughout | 119 |
|
| 5 | [be] used throughout | 44 |
|
| 6 | [is] use throughout | 10 |
|
| 7 | [is] used throughout | 10 |
|
