Prefix or Suffix

[Trussell]

What word will go with each of these 3 words, please?
Test; automatic; scheme. i thought of Drive, but is there a phrase' drive scheme?

and with these: Error; Nature; super.

Many thanks in advance

[ChuckFickens]

Pilot maybe? for the first

[Octavius]

Human for the second?

[E.R.]

I'd say human human error, human nature, superhuman

[Trussell]

Thank you all very much. So obvious when it is pointed out.