SN4 ""

No	Pattern	Freq
1	[noun] and [adv] a	1254
2	[noun sg] and [adv] a	854
3	[noun pl] and [adv] a	305
4	[noun] and then a	204
5	[noun] and even a	130
6	[noun] and also a	102
7	[noun] and only a	89
8	[noun prp] and [adv] a	77
9	[noun] and perhaps a	55
10	[noun] and therefore a	53
11	[noun] and quite a	46
12	[noun] and possibly a	39
13	[noun] and now a	38
14	[noun] and just a	33
15	[noun] and later a	29
16	[noun] and maybe a	29
17	[noun] and sometimes a	28
18	[noun] and hence a	23
19	[noun] and so a	21
20	[noun] and probably a	20
21	[n mass] and [adv] a	15
22	[noun] and often a	14
23	[noun] and consequently a	14
24	[noun] and over a	14
25	year and [adv] a	14
26	[noun] and thus a	13
27	[noun] and finally a	11
28	[noun] and once a	11
29	[noun] and more a	11
30	[noun] and almost a	9