SN4 ""

No	Pattern	Freq
1	at [adj] about the	36
2	at all about the	33
3	at all about the	33
4	at [det] about the	33
5	at [noun] about the	25
6	at [noun sg] about the	17
7	at length about the	7
8	at [adv] about the	7
9	at length about the	7
10	at [adv] about the	5
11	[noun] at about the	74
12	[verb] at about the	54
13	[noun sg] at about the	42
14	[vb pp] at about the	22
15	[noun pl] at about the	20
16	[adv] at about the	16
17	[adv] at about the	13
18	[vb past] at about the	13
19	[noun prp] at about the	12
20	[conj] at about the	7
21	[be] at about the	6
22	be at about the	6
23	[adj] at about the	6
24	[vb -s] at about the	5
25	[v-ing] at about the	5
26	at about the [adj]	182
27	at about the same	165
28	at about the same	165
29	at about the [det]	165
30	at about the [noun]	68