I am trying to understand the subjective mood and I am confused.

So that I can see the differences, can someone please tell me how you translate each of these eight words?:

a. quiero and queremos (Present Indicative)
b. quiera and queramos (Present Subjunctive)
c. quise and quisimos (Preterite Indicative)
d. quisiese and quisiemos (Preterite Subjunctive)

Thanks …. wdc