staff or staffs

0 Staff already refers to a group. You don't need to make it plural with an 's' in this case.02br
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00A. I need you to work with the training staff from Northwest, Avra Valley and Drexel Heights Fire Districts. <---Correct0-

0Yes, staff is correct, not staffs.02br
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01b00Staff02b00 means the people who work for a shop, company, etc. 01b00Staff02b00 always refers to a group of people. If you want to refer to a single person, say 01b00a member of staff02b00. (Cambridge Advanced Learner's Dictionary)00 0-

0 01blockquote

01cite10Anonymous12cite10I need you to work with the 11font11b10trainings 11u10staffs12u12b12font10 from Northwest, Avra Valley and Drexel Heights Fire Districts.12br
12blockquote

10Note: adjectives in English do not change with sin

0 Because of the final word, the plural District01u00s02u00, it sounds like three different staffs (groups of people) to me: one from Northwest, one from Avra Valley, and one from Drexel Heights.02br
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00 So I'd say02br
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00 I need you to work with the trainin01font00g02font00 

0Oops, I was wrong.05002br
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00There are different groups of people, so different staffs. [Y]010id8

0 Hm, CalifJim has a point. 02br
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00It is neat that you picked up on changing the capitilization of fire districts. Despite what is written, I was reading: "I need you to work with the training staff from Northwest, Avra Valley and the Drexel Heights Fire Districts."02br
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00So 'staffs' would be the correct word to use! Nice catch CJ0-