Конечно! Вот варианты предложений с использованием "wish" для каждой из ваших фраз:
I wish I lived in the city.
I wish I hadn't made such a bad mistake.
I wish I could speak Italian.
I wish she loved me.
I wish he weren't in the army now.
I wish I were older.
I wish they had warned us then.
I wish I hadn't stayed in Moscow last summer.
Если у вас есть другие вопросы, не стесняйтесь задавать!