Shall vs Should

When to use each in English, with meaning, register, and examples.

Shall

FormalTop 5,000 (fairly common)A2

Should

Top 1,000 (very common)A1
Most formal: ShallMost common: Should
 ShallShould
Pronunciation🇬🇧 /["/ʃəl//ʃæl/","/ʃɑːnt/","/ʃʊd/"]/🇺🇸 /["/ʃəl//ʃæl/","/ʃænt/","/ʃʊd/"]/🇬🇧 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/🇺🇸 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/
MeaningUsed to indicate future action or to ask for advice or suggestions.used to tell someone what is the right thing to do
ExampleThis time next week I shall be in Scotland.You should study for the exam to do well.
RegisterFormalNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
CEFR levelA2A1
Collocationsshall we dance, you shall not pass, shall I compare thee, shall I help you, shall we startshould do, should have, should not, should consider, should remember
Antonymsrefuse, declinemust not, shall not
Common mistakesUsing 'shall' in first person only — 'shall' is typically used with 'I' or 'we' and not with other subjects., Confusing 'shall' with 'should' — 'shall' indicates future intent, while 'should' often indicates obligation., Using 'shall' in negative forms incorrectly — remember, it's not commonly used for negatives.'Should' is often confused with 'must,' leading to weaker advice than intended., Forget to follow 'should' with the base form of the verb, e.g., saying 'should goes' instead of 'should go.', Using 'should' for past events instead of 'should have.'
Usage notesCommonly used in formal contexts, such as legal documents or official speeches. It's more often used in British English than in American English. In informal contexts, 'will' is preferred.Use 'should' for advice, suggestions, or expectations. It's appropriate in both spoken and written English, but avoid it in very formal contexts where 'ought to' might be preferred.

See it in real clips

Shall

Frequently asked questions: Shall vs Should

What's the difference between Shall and Should?

Shall: Used to indicate future action or to ask for advice or suggestions. Should: used to tell someone what is the right thing to do

Which is more formal: Shall and Should?

Shall is the most formal of these.

Which is more common: Shall and Should?

Should is the most common in everyday English.

Which is more advanced: Shall and Should?

Shall is the highest level, at A2, on the CEFR scale.

Are Shall and Should the same CEFR level?

Shall: A2, Should: A1 on the CEFR scale.

Can you show an example of each?

Shall: This time next week I shall be in Scotland. Should: You should study for the exam to do well.

Can I use Shall and Should interchangeably?

Not always. Shall and Should are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons