Last winter, there was a lot of snow, so we could / can / couldn't ski every day.
Last winter, there was a lot of snow, so we could ski every day.
I love hanging out with her. She's so inconsiderate / kind.
I love hanging out with her. She's so kind.
Laura mustn't/ doesn't have to come right now. There's no hurry. It's fine to meet later.
Laura doesn't have to come right now. There's no hurry. It's fine to meet later.
Will Janet win the competition? Can / Could / Couldn't she spell well in English?
Will Janet win the competition? Can she spell well in English?
Oliver isn't happy because he has to / mustn't/ should walk home in the rain.
Oliver isn't happy because he has to walk home in the rain.
She always forgets her promises, he's so dishonest / unreliable.
She always forgets her promises, he's so unreliable.
Megan and Harry must/ don't have to buy a new car. Their old one is fine.
Megan and Harry don't have to buy a new car. Their old one is fine.
I'm sorry. I could / couldn't / can't play tennis at 3 o'clock tomorrow.
I'm sorry. I can't play tennis at 3 o'clock tomorrow.
We have to / mustn't tell them the truth, because they will find out anyway.
We have to tell them the truth, because they will find out anyway.
Lisa looks tired. She doesn't have to / mustn't/ should go to bed early.
Lisa looks tired. She should go to bed early.
Unreliable people often disappoint / trust others.
Unreliable people often disappoint others.
That annoys me! You're being selfish/sensible.
That annoys me! You're being selfish.
When someone is sensitive, it's easy to hurt their feelings / disappoint them.
When someone is sensitive, it's easy to hurt their feelings.
Look at Ellie! She could / can / couldn't ride a motorbike!
Look at Ellie! She can ride a motorbike!
You should / mustn't/ don't have to give your personal details to strangers on the Internet.
You mustn't give your personal details to strangers on the Internet.
In our school, students don't have to / mustn't come to class late.
In our school, students mustn't come to class late.
It's difficult to trust / apologise someone dishonest
It's difficult to trust / apologise someone dishonest
Millie has to / doesn't have to stand up for herself more often. She's too shy.
Millie has to stand up for herself more often. She's too shy.
Sometimes, impolite people disappoint / apologise after they've been rude
Sometimes, impolite people apologise after they've been rude
Can't / Can / Could you speak English ten years ago?
Could you speak English ten years ago?
Today is Sunday. I don't have to / mustn't / shouldn't go to school.
Today is Sunday. I don't have to go to school.
When we were younger, my brothers and I couldn't / can't/ can stop fighting.
When we were younger, my brothers and I couldn't stop fighting.
You don't have to / mustn't hurt Sara's feelings. Try to be nice to her.
You mustn't hurt Sara's feelings. Try to be nice to her.
He's very moody these days. I think it's best to betray/ignore him for a while.
He's very moody these days. I think it's best to ignore him for a while.
He's arrogant. He doesn't respect / forgive anyone else.
He's arrogant. He doesn't respect anyone else.
I'm not being stubborn. I just disagree / compromise with you about this.
I'm not being stubborn. I just disagree with you about this.
He's annoyed when I hang out with other boys. He's so arrogant / jealous.
He's annoyed when I hang out with other boys. He's so jealous.
You don't have to / must / shouldn't lie to your parents.
You shouldn't lie to your parents.