Hi,

Could you tell me which phrase(s) are natural from your standpoint ?

1. Children begin to speak at the age of three
2. Children start to speak at the age of three
3. Children begin speaking at the age of three
4. Children start speaking at the age of three

Thanks a lot!
Regular Member858
They are all okay grammatically, but the infinitive versions (1 and 2) show the process is starting. With the -ing forms, it sounds like they suddently just start talking, as opposed to it being an acquisition.

However, language acquisition starts MUCH earlier than 3.

So maybe you mean they start talking in a way that is more similar to adult speech, with full sentences, and such, which does happen around 3. If that's the case, then modify "speaking" - Children start speaking coherently around the age of 3. I see no different between "start" and "begin."
Veteran Member27,513
Proficient Speaker: Users in this role are known to maintain an excellent grasp of the English language. You can only be promoted to this role by the Englishforums team.Retired Moderator: A moderator who has retired.Trusted Users: Trusted users are allowed to use additional capabilities of the site such as private messaging to all users and various other advanced features. You cannot join this role unless you are promoted by an administrator.
MrPernicketyCould you tell me which phrase(s) are natural from your standpoint ?
All four seem very natural to me. start and begin are pretty much synonymous, except you can only start machinery (cause it to start), not begin it.

I started the [car / truck / engine / motor]. (*I began the [car / truck / engine / motor].)

CJ
Veteran Member53,387
Moderator: A super-user who takes care of the forums. You have the ability to message a moderator privately should you wish. These users have a range of elevated privileges including the deletion, editing and movement of posts when needed.Proficient Speaker: Users in this role are known to maintain an excellent grasp of the English language. You can only be promoted to this role by the Englishforums team.
Thank you Barbara nand Jim !

I've taken in your lesson !
Live chat
Registered users can join here