I find both forms acceptable and more-or-less interchangeable. " So it's more accurate to use the past perfect. To be honest though, the present perfect sounds slightly more natural to me, and it's probably the form that I would use without thinking.
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DMWI find both forms acceptable and more-or-less interchangeable. Strictly speaking, the present perfect would mean "I didn't come in contact with cats before the present moment," but the past perfect would mean "I didn't come in contact with cats before I met your cat and started coughing and sneezing." So it's more accurate to use the past perfect. To be honest though,
PreciousJonesIt's okay because I haven't been in close contact with cats before.You have, though, so this is a false statement. Use the past perfect.