Answer:
Perfect
Singular:
1st: docui (I taught)
2nd: docuisti (You taught)
3rd: docuit (he/she taught)
Plural:
1st: docuimus (we taught)
2nd: docuistis (you [pl.] taught)
3rd: docuerunt (they taught)
pluperfect
singular:
1st: docueram (I had taught)
2nd: docueras (you had taught)
3rd: docuerat (he/she had taught)
plural:
1st: docueramus (we had taught)
2nd: docueratis (you [pl.] had taught)
3rd: docuerant (they had taught)
future perfect:
singular:
1st: docuero (I will have taught)
2nd: docueris (you will have taught)
3rd: docuerit (he/she will have taught)
plural:
1st docuerimus (we will have taught)
2nd: docueritis (you [pl.] will have taught)
3rd: docuerint (they will have taught)
Explanation: