Jane didn't finish her homework.
If only Jane her homework.

I don’t know the answer to the teacher's questions.
If only I the answer to these questions.

My little brother is so annoying.
I wish my little brother so annoying.

My sister never does any housework. I wish she some household chores.

Jane doesn't pay much attention in this lesson.
If only Jane more attention in this lesson.

I've got a splitting stomachache.
I wish I a splitting stomachache.

He was told off because he didn't do what his mother had asked him.
He wishes he what his mother had asked him.

My brother always belches after eating. It's such a bad habit. I wish he after eating.

She didn't heed my advice. That's why she lost many things.
If only she my advice.

It’s a pity that they can’t understand how I feel.
If only Mai understand how I feel.