Pretty simple. The online application has narrative boxes for each of those questions so you can just answer them there. That within the application is the personal statement and those boxes are in both the applicant and sponsor online applications. If you keep your answers clear and to the point, the 2000 character limit shouldn't be an issue.
The immigration website for your partner visa has a lot of information. I suggest reading through all of that including any sublinks before you apply. Things like the F888s are self explanatory if you download it and read it.
The immigration website for your partner visa has a lot of information. I suggest reading through all of that including any sublinks before you apply. Things like the F888s are self explanatory if you download it and read it.