Final answer:
The subject of this question is English as it involves the use of subjunctive and conditional sentences, which are grammatical concepts in the English language.
Step-by-step explanation:
The subject of this question is English because it involves the use of subjunctive and conditional sentences, which are grammatical concepts in the English language.
In sentence 1, the use of 'wished' and 'would' demonstrates the subjunctive mood.
In sentences 2, 3, 4, 5, and 6, the use of 'if' and 'would' or 'might' shows the conditional mood.