それはあらかじめ練っていた計画ではなかった。の英語

It wasn't premeditated.

Little did I imagine that my plan would go wrong.

The plan was destined to miscarry.

Practically, the plan didn't work well.

That plan ended wastefully.

Those plans won't really go as hoped.

The project was a complete failure.

The plan failed after all.

The plan did not work well in practice.

The plan failed after all.

This plan wasn't changed at all.

It was quite easy for me to carry the plan out.

The plan is not mature.

The plan was destined for failure.

That plan resulted with failure.

It was difficult to carry out the plan.

Such a plan is bound to fail.

He said he had no further plans yet.

And their plan was never carried out.

They went ahead with the plan since there were no objections.

The way was clear for us to carry out our plan.

It's just a sketch of the plan.

The project did not materialize

The scheme fell through.

I felt that the plan was unwise.

The man is not concerned in this project.

The plan has little appeal for [to] me.

The plan was doomed to failure.

The long and (the) short of it is that the plan was a failure.

No one expressed any opposition to the plan.