The phrase "extended primary partition" is unclear, particularly in this context.
If you're asking if it's possible to combine three partitions into one, I'm not aware of any tools that will do that job directly. My knowledge might simply be limited, though. (I'm not an expert on Windows partitioning or filesystem tools.) If there are no such tools, the best way to do this is to back up a partition, delete it, resize the original to cover the deleted one's space, and restore the backup. In theory, you could combine your
/dev/sda2 in this way, and combine your
/dev/sda4 in this way; but those two groups are separated by other partitions, so combining them would involve moving those partitions, which adds hassle and risk. Also, note the phrase "in theory." Windows 7 and 8 installations often cover three or four partitions that are not intended to be merged in this way. I can't guarantee that merging them would cause problems, but I suspect that it would.
If you're asking if it's possible to convert primary partitions into logical partitions, then the answer is "yes," albeit with some caveats. My FixParts program can do the job, as can some Windows-specific tools (I don't recall the details of what Windows programs would work, though). In the case of FixParts, one major caveat is that there must be at least one free sector before each to-be-logical partition. In the case of your specific partitions, some of them might need to be primary partitions. Windows requires at least one primary partition to boot, so at best you could convert two of your primary NTFS partitions into logical partitions.
More broadly, the question I have is: Why? You haven't explained why you think there's a benefit to making either of the types of changes I've outlined (or something else, if you have something else in mind). The main possible benefit I can imagine is in reducing the number of primary partitions being consumed, and that's really only an issue if you were planning to install another OS that requires primary partitions (say, FreeBSD). Understanding why you might want to do this is important because the validity (or lack thereof) of the reason will determine how much effort you should expend in trying to achieve this goal.