Shas

Hi everyone, I will soon be applying for 887 visa application,I am currently on 496.I just wanted to ask as a main applicant ,do I have to do IELTS again to show my English proficiency or just show my old IELTS certificate(which is now expired) and does my spouse have to do IELTS as well.She couldn't achieve 4.5 when we applied for 496 and she has been doing AMEP functional English certificate 3. My second question is that as it is required that main applicant should've done full time work for one year.Does it have to be continuous full time work for one year or it has to be amount of work equivalent to one year of full time work.For example if I do work for 18 months and it is equivalent to the number of hours of one year's full time work.Would it be accepted or if I do work in bits and pieces as in 3 months(full time) here then break and 5 months(full time) and complete one year full time work.Would it be accepted? Any help would be highly appreciated.Many Thanks Regards, Shas