Simple Past
I go crazy for Jeopardy?
I went crazy for Jeopardy!
I finish my homework.
I have finished my homework."
She fills out the application form before the deadline
She had filled out the application form before the deadline
She is working on her thesis in the library for hours, knowing that in the long run, it will pay off.
She has been working on her thesis in the library for hours, knowing that in the long run, it will pay off.
She is studying for hours, but for once, she decides to take a break and relax."
She had been studying for hours, but for once, she decided to take a break and relax."
After an earthquake, the house is turned upside down and inside out. So you see that the insurance claim is not cut and dried.
After an earthquake, the house was turned upside down and inside out. So you saw that the insurance claim was not cut and dried.
She runs out of patience.
She has ran out of patience
He fills in all the details on the form accurately.
He had filled in all the details on the form accurately.
He is on his toes lately, juggling multiple projects at work.
He has been on his toes lately, juggling multiple projects at work.
The alarm is going off all morning, disrupting everyone's work.
The alarm had been going off all morning, disrupting everyone's work.
I hear of your good work every day. You bring me joy!
I heard of your good work every day. You brought me joy!
No matter what, he sings in a choir.
NB: You will need to add a time marker in the answer to convert this sentence to the present perfect.
No matter what, he has sung in a choir for many years.
Before the interview, she takes up yoga to calm her nerves.
Before the interview, she had taken up yoga to calm her nerves.
She is watching her step around her boss to avoid any misunderstandings.
She has been watching her step around her boss to avoid any misunderstandings.
By the time he turns eighteen, he will be growing out of his childhood toys.
By the time he turned eighteen, he had been growing out of his childhood toys.
The situation isn't cut and dried. He does his homework when I go to work.
The situation wasn't cut and dried. He did his homework when I went to work.
They study astrophysics.
(NB: You will need to add a time marker to convert to the present perfect).
They have studied astrophysics for months.
He takes up with a new group of friends after moving to the city.
He had taken up with a new group of friends after moving to the city.
He is eating healthier since January of this year, he is keeping up with his new year resolution.
He has been eating healthier since January of this year, he is keeping up with his new year resolution.
Despite the challenges, they are making the best of their situation.
Despite the challenges, they had been making the best of their situation.
We need to clarify this once and for all. I am happy that you win every game of Jeopardy.
We needed to clarify this once and for all. I was happy that you won every game of Jeopardy.
The scientists synthesize a groundbreaking compound.
(NB: Add a time marker to the answer to convert to present perfect.)
Just this past week, the scientists have synthesized a groundbreaking compound.
She takes after her grandmother in both looks and temperament.
She had taken after her grandmother in both looks and temperament.
They are seeing eye to eye on the new project, which is leading to smoother collaboration.
They have been seeing eye to eye on the new project, which has been leading to smoother collaboration.
He is cutting off ties with toxic relationships to focus on his well-being.
He had been cutting off ties with toxic relationships to focus on his well-being.