Modal Verbs: Can, Could, Should, Must — B1 Grammar
function checkA(el,c,exp,q){
document.querySelectorAll(‘input[name=”q’+q+'”]’).forEach(function(r){r.disabled=true;});
var fb=document.getElementById(‘fb’+q);fb.style.display=’block’;
if(parseInt(el.value)===c){fb.style.background=’#c6f6d5′;fb.style.color=’#276749′;fb.innerHTML=’✓ Correct! ‘+exp;}
else{fb.style.background=’#fed7d7′;fb.style.color=’#9b2c2c’;fb.innerHTML=’✗ ‘+exp;}
}
function checkF(id,ans){
var v=document.getElementById(‘fi’+id).value.trim().toLowerCase();
var fb=document.getElementById(‘ff’+id);fb.style.display=’block’;
if(v===ans.toLowerCase()||v.replace(/s+/g,’ ‘)===ans.toLowerCase()){
fb.style.background=’#c6f6d5′;fb.style.color=’#276749’;fb.innerHTML=’✓ Correct: ‘+ans+’‘;}
else{fb.style.background=’#fed7d7′;fb.style.color=’#9b2c2c’;fb.innerHTML=’✗ Answer: ‘+ans+’‘;}
}
B1 ⏱ 5 min
🎯 Modal Verbs: Can, Could, Should, Must
Working at the Star Casino, I had to master the language of obligation and permission fast.
📖 Modal Verbs at a Glance
| Modal | Use | Example |
|---|---|---|
| can | ability / permission | Can I take your order? |
| could | polite request | Could you repeat that? |
| should | advice | You should try the house wine. |
| must | obligation | Guests must present ID. |
| mustn't | prohibition | You mustn't enter without a pass. |
| don't have to | no obligation | You don't have to tip. |
‘You ___ smoke in the dining area.’ (rule/prohibition)
More formal polite request: ‘___ I see the wine list?’
‘You ___ wash your hands before service.’ (strong obligation)
Guests ____________ enter the kitchen. (prohibition)
You ____________ come early — it is optional.
💬 Real-Life Practice
Independent project; not affiliated with, endorsed by, or accredited by Cambridge University Press & Assessment. Confers no qualification.
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