Past Tenses
I heard a knock at the front door so I (went / was going) to answer it.
I heard a knock at the front door so I went to answer it.
You (must / might / shouldn't) be exhausted after your long trip. Come inside and have a drink.
You must be exhausted after your long trip. Come inside and have a drink.
My mom sings a lullaby.
A lullaby is sung by my mom.
If she still feels sick tomorrow, she ___ to the doctor. (go)
If she still feels sick tomorrow, she will go to the doctor. (first conditional)
"My sister is working now."
He said that his sister was working then.
We entered the house quietly because everyone (was sleeping / slept).
We entered the house quietly because everyone was sleeping.
That (might / can't / must) be Jake. It's impossible. He's in France right now!
That can't be Jake. It's impossible. He's in France right now!
Alexander Fleming discovered penicillin.
Penicillin was discovered by Alexander Fleming.
If I ___ a word, I look it up in the dictionary. (not / know)
If I don´t know a word, I look it up in the dictionary. (zero conditional)
"We have moved into our new flat."
They said that they had moved into their new flat.
At this time yesterday, I (wrote / was writing) an essay.
At this time yesterday, I was writing an essay.
You (mustn't / should / might) step into the director's office without permission.
You mustn't step into the director's office without permission.
My cat left a dead mouse on my bed.
A dead mouse was left on my bed by my cat.
She wouldn't have been tired if she _____ to bed earlier.
She wouldn't have been tired if she had gone to bed earlier. (third conditional)
"Do you live in the country?"
They (left / had left) many hours before we arrived.
They had left many hours before we arrived.
My husband is cooking dinner for the party. He's not a good cook so you (shouldn't / can't / have to) expect anything fancy.
My husband is cooking dinner for the party. He's not a good cook so you (shouldn't / can't / have to) expect anything fancy.
They have found your watch.
Your watch has been found by them.
If we ____ Bill to the party, we would have to invite his friends too. (invite)
If we invited Bill to the party, we would have to invite his friends too. (second conditional)
"Where did you find these pants?"
He asked me where I had found those pants.
The boys (played / were playing) football until it started to rain.
The boys were playing football until it started to rain.
You (mustn't / don't have to) apply for the job yet. You can do it later.
You don't have to apply for the job yet. You can do it later.
Mosquitos were eating me alive.
I was being eaten alive by mosquitos.
If we had taken a taxi, we _______ the plane.
If we had taken a taxi, we wouldn't have missed the plane. (third conditional)
"Don´t worry about anything."
He told me not to worry about anything.