| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be at [noun sg] | 121 |
|
| 2 | it [is] at [noun sg] | 79 |
|
| 3 | it is at [noun sg] | 47 |
|
| 4 | it [was/were] at [noun sg] | 42 |
|
| 5 | it was at [noun sg] | 40 |
|
| 6 | it 's at [noun sg] | 32 |
|
| 7 | it [be] at home | 23 |
|
| 8 | it [be] at present | 23 |
|
| 9 | it [be] at night | 9 |
|
| 10 | it [be] at work | 7 |
|
