SN4 ""

No	Pattern	Freq
1	although it is [adv] [verb]	89
2	although it [is] [adv] [vb pp]	83
3	although it [is] [adv] [verb]	67
4	although it [is] not [verb]	27
5	although it [is] not [verb]	27
6	although it [is] [not/n't] [verb]	27
7	although it [is] [adv] know	11
8	although it [is] [adv] known	11
9	although it [is] now [verb]	8
10	although it [is] [adv] [v-ing]	8
11	although it [is] now [verb]	8
12	although it [is] often [verb]	7
13	although it [is] often [verb]	7
14	although it [is] sometimes [verb]	6
15	although it [is] generally [verb]	6
16	although it [is] sometimes [verb]	6
17	although it [is] generally [verb]	6
18	although it 's [adv] [verb]	5
19	although it [is] widely [verb]	5
20	although it [is] widely [verb]	5