If only ...

If only I lived in the countryside.

• I don’t live in the countryside in the past so this desire is impossible.

• I don’t live in the countryside in the present so this desire is impossible.

If only I hadn't eaten the prawns.

• I regret that I ate the prawns in the past.

• I regret that I ate the prawns in the present.

If only he could save money.

• This is an impossible desire about his ability in the present to save money.

• This is a possible desire about his ability in the past to save money.

If only he were on holiday.

• He is on holiday so this is an impossible desire in the present.

• He is not on holiday so this is an impossible desire in the present.

Which one is correct?

• If only I didn't have a headache, I could go to the party tonight.

• If only I have a headache, I could go to the party tonight.

Which one is incorrect?

• If only I'd taken the train, I would arrive at the destination by now.

• If only I'd taken the train, I would have arrived at the destination by now.

Which one is incorrect?

• If only I had taken the train,I would have arrived by now.

• If only I had take the train,I would have arrived by now.

Which one is correct?

• If only someone would buy the house.

• If only they talks to each other.

If only he had listened to what his friends had been telling him.

• He listen.

• He didn’t listen.

If only Anna had been able to come.

• Anna wasn’t able to come.

• Anna is able to come.