Native speakers usually use contractions especially when speaking. We make contractions by connecting two or more words together. One or more letters are removed from the words when they are connected.
I am → I'm →"I'm older than you."
I had →I'd → "I'd better do my homework."
I have → I've → "I've always liked sushi."
I will → I'll → "I'll tell you later."
I would → I'd → "I'd have taken you if I had known."
You are → You're → "You're my best friend."
You had → You'd → "You'd gone to the cinema."
You have → You've → "You've seen it before."
You would → You'd → "You'd have really liked it."
You will → You'll → "You'll be late."
He had → He'd → "He'd already spent the money."
He has → He's → "He's been to London twice."
He is → He's → "He's my cousin."
He will → He'll → "He'll lend you his bike."
He would → He'd → "He'd rather go shopping."
She had → She'd → "She'd gone to bed before he called."
She has → She's → "She's been studying for hours."
She is → She's → "She's very intelligent."
She will → She'll → "She'll be working late today."
She would → She'd → "She would love to go."
It had → It'd → "It'd been snowing all night."
It has → It's → "It's been fun."
It is →It's → "It's much warmer today."
It will → It'll → "It'll be fine."
It would → It'd → "It'd have been great."
We are → "We're all excited."
We had → We'd → "We'd forgotten to take them."
We have → We've → "We've all thought about it."
We will → We'll → "We'll go next summer."
We would → We'd → "We'd like to go again."
They are → They're → "They're living near here."
They had → They'd → "They'd just finished reading the report when their boss came."
They have → They've → "They've asked me before."
They will → They'll → "They'll meet you there."
They would → They'd → "They'd have walked if the weather had been better."
There has → There's → "There's been mail today."
There is → There's → "There's more in the fridge."
There will → There'll → "There'll be a protest strike tomorrow."
There had → There'd → "There'd better be a good reason why you are late."
There would → There'd → "There'd have been more people here if the party had been on the weekend."
That had → That'd → "That'd better be the last time she calls me."
That is → That's → "That's it."
That will → That'll → "That'll make it easier to understand."
That would → That'd → "That'd have been why."
Are not → Aren't → "You aren't invited."
Can not → Can't → "You can't smoke in here."
Could not → Couldn't → "He couldn't find you."
Did not → Didn't → "She didn't remember me."
Does not → Doesn't → "He doesn't work here."
Do not → Don't → "I don't like spiders."
Had not → Hadn't → "He hadn't been told."
Has not → Hasn't → "She hasn't left."
Is not → Isn't → "This isn't difficult."
Must not → Mustn't → "I musn't make a noise."
Need not → Needn't → "You needn't come."
Should not → Shouldn't → "We shouldn't eat sweets."
Was not → Wasn't → "It wasn't bad."
Were not → Weren't → "They weren't helpful."
Will not → Won't → "We won't regret it."
Would not → Wouldn't → "You wouldn't believe me."
Now choose the correct contraction in each sentence:
