Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
which start
Grammar usage guide and real-world examplesUSAGE SUMMARY
"which start" is correct and usable in written English.
You can use it to introduce a clause which expands on or explains the preceding clause. For example: My mother studied accounting, which start my interest in finance.
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Whites, which start at $45, emphasize chardonnay.
News & Media
Tickets, which start at $500, are sold out.
News & Media
Men's bathing suits, which start at $10, also sell well.
News & Media
Even studios, which start at $2,950 a month.
News & Media
So are the ties, which start at $120.
News & Media
Imagining alternative technological worlds and histories which start from experiences of the African diaspora.
Academia
People should be aware about the Occupy Movement which start in health.
Sizes range from one-bedrooms, which start at 850 square feet, to four-bedrooms, which start at 2,900 square feet.
News & Media
Tickets, which start at $50, include access to an unlimited open bar.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Now some have started placing bets on which start-ups the social network will acquire next.
News & Media
WALL STREET JOURNAL Which Start-Up Is the Next Big Thing?
News & Media
Expert writing Tips
Best practice
When using "which start", ensure the clause it introduces clearly and directly relates to the preceding noun phrase, providing additional relevant information about the starting point.
Common error
Avoid using "which start" after a restrictive clause where the information is essential to understanding the noun it modifies. In such cases, use "that start" without a comma. For instance, 'The programs that start early are the most popular' (no comma needed).
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which start" functions as a relative clause introducing additional, non-essential information about a preceding noun. As Ludwig AI confirms, the phrase is grammatically sound and can be used to expand or explain the initial clause.
Frequent in
News & Media
76%
Science
15%
Academia
9%
Less common in
Encyclopedias
0%
Wiki
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "which start" is a grammatically correct and commonly used phrase that serves to introduce nonrestrictive clauses, providing additional details about a preceding noun. According to Ludwig AI, the phrase is suitable for expanding on or explaining the initial clause. Predominantly found in "News & Media" and scientific contexts, its neutral register makes it versatile for various forms of writing. When using "which start", ensure it introduces relevant, supplementary information and is punctuated correctly with a comma. Remember to reserve "that start" for essential information without a preceding comma.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that begin
A simple synonym replacement for "start", maintaining the original meaning.
that commence
Replaces "start" with a more formal synonym, "commence".
that initiate
Substitutes "start" with "initiate", emphasizing the beginning or launching of something.
that get underway
Uses a more idiomatic expression to indicate the beginning of an event or activity.
that originate
Focuses on the point of origin or creation rather than simply starting.
that kick off
Uses a more informal and dynamic expression for starting, often used for events.
that spring from
Suggests that something arises or emerges from a particular source.
that are triggered by
Highlights the cause or impetus behind the start of something.
that are set in motion
Emphasizes the act of initiating a process or sequence of events.
that dawn
Emphasizes the beginning of an era or a significant period of time.
FAQs
How do I use "which start" in a sentence?
Use "which start" to introduce a nonrestrictive clause that provides extra information about a noun. For example, "The classes, "which start" next week, are fully booked."
What's the difference between "which start" and "that start"?
"Which start" introduces a nonrestrictive clause (additional, non-essential information), while "that start" introduces a restrictive clause (essential information). Use a comma before "which", but not before "that". For example, 'The games that start after 8 PM are cheaper' vs. 'The games, "which start" after 8 PM, are less crowded'.
Can I use "which begin" instead of "which start"?
Yes, "which begin" is a suitable alternative to "which start". The choice often depends on the desired tone and style, with "begin" being slightly more formal.
Is "which starts" grammatically correct?
Yes, "which starts" is grammatically correct when referring to a singular noun. For instance, 'The movie, "which starts" at 7 PM, is a comedy'.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested