SN4 ""

No	Pattern	Freq
1	at the [noun sg] [conj] it [verb]	68
2	at the [noun sg] [conj] it [verb]	68
3	at the [noun sg] [subord] it [verb]	41
4	at the [noun sg] [conj] it [vb past]	41
5	at the [noun sg] [conj] it [vb -s]	26
6	at the [noun sg] [coord] it [verb]	20
7	at the [noun sg] and it [verb]	15
8	at the [noun sg] and it [verb]	15
9	at the [noun sg] [conj] it have	12
10	at the [noun sg] as it [verb]	10
11	at the [noun sg] as it [verb]	10
12	at the [noun sg] [conj] it had	8
13	at the [noun sg] when it [verb]	7
14	at the [noun sg] that it [verb]	7
15	at the time [conj] it [verb]	7
16	at the [noun sg] [that] it [verb]	7
17	at the [noun sg] when it [verb]	7
18	at the [noun sg] that it [verb]	7
19	at the [noun sg] since it [verb]	6
20	at the [noun sg] since it [verb]	6
21	at the door [conj] it [verb]	6
22	at the [noun sg] but it [verb]	5
23	at the [noun sg] until it [verb]	5
24	at the [noun sg] [conj] it open	5
25	at the [noun sg] until it [verb]	5
26	at the [noun sg] [conj] it opened	5
27	at the [noun sg] but it [verb]	5
28	at the [noun sg] [conj] it do	5