Alter vs Gonna need to amend that

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

Alter

Beyond 10,000 (less common) B2 verb

Gonna need to amend that

Informal Top 3,000 (common)

Most formal: Alter Most common: Gonna need to amend that

	Alter	Gonna need to amend that
Pronunciation	🇬🇧 //ˈɔːltə// 🇺🇸 //ˈɔltɚ//	🇬🇧 //ˈɡɒnə niːd tə əˈmɛnd ðæt// 🇺🇸 //ˈɡɑːnə nid tə əˈmɛnd ðæt//
Meaning	To change something.	You need to change that.
Example	The dress was altered to fit better.	We're gonna need to amend that proposal before submission.
Register	Neutral	Informal
How common	Beyond 10,000 (less common)	Top 3,000 (common)
CEFR level	B2	-
Part of speech	verb
Collocations	alter the course, alter the agreement, alter the design, alter behavior, alter personality	gonna need to amend a report, gonna need to amend a document, gonna need to amend a procedure, gonna need to amend the plan, gonna need to amend your statement
Antonyms	preserve, maintain, retain	-
Common mistakes	Confusing with 'change' - 'alter' usually implies a more significant adjustment., Using 'alter' without an object - it should always follow an object., Incorrectly using 'altered' as a noun.	Confusing 'amend' with 'fix' when the context requires more specific changes., Using 'gonna' in formal situations where 'going to' is more appropriate., Incorrectly assuming all changes require an amendment; some may be simple fixes.
Usage notes	Use 'alter' when you want to indicate a change or modification. It is more formal than 'change'. Avoid using it for very minor or trivial adjustments.	Use 'gonna need to amend that' in casual conversations when suggesting a change. It's too informal for formal writing.

See it in real clips

Avengers › Avengers Endgame

so someone's gonna need to amend that

Gonna need to amend that

Frequently asked questions: Alter vs Gonna need to amend that

What's the difference between Alter and Gonna need to amend that?

Alter: To change something. Gonna need to amend that: You need to change that.

Which is more formal: Alter and Gonna need to amend that?

Alter is the most formal of these.

Which is more common: Alter and Gonna need to amend that?

Gonna need to amend that is the most common in everyday English.

Can you show an example of each?

Alter: The dress was altered to fit better. Gonna need to amend that: We're gonna need to amend that proposal before submission.

Can I use Alter and Gonna need to amend that interchangeably?

Not always. Alter and Gonna need to amend that 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.