Category 1
I have did everything I possibly could.
– did–done
She suggested comes to a different conclusion.
– comes–coming
You must finish it now — there’s no urgency.
– must–should (don't have to)
He is fully aware about the consequences.
– about–of
This approach is highly economic in practice.
– economic–economical
By the time we arrived, they completes the negotiations.
– completes–had completed
He admitted deny the accusation earlier.
– deny–denying
It was raining heavily; although, we continued the experiment.
– although–however
They were highly satisfied by the outcome.
– by–with
He is extremely sensible to criticism.
– sensible–sensitive
She has been working here since several years.
– since–for
They avoided discusses the issue in public.
– discusses–discussing
He didn’t prepare; therefore, he succeeded easily.
– therefore–so
She insisted remains silent throughout the meeting.
– remains–remaining
These kind of assumptions are misleading.
– These–This
He was realizing the mistake only afterwards.
– was realizing–realized
You might be absolutely certain about that.
– might–must
I was exhausted; however, I went straight to bed.
– however–so
The new policy will effect long-term changes.
– effect–affect
Everyone must rely on theirselves in such situations.
– theirselves–themselves
I’ll inform you as soon as he arrive.
– arrive–arrives
He must be at home; I just saw him leave.
– must–can’t
She is responsible of overseeing the project.
– of–for
The number of cases has fell dramatically.
– fell–fallen
This evidence clearly prove the hypothesis.
– prove–proves