You should have known better than to leave or to have left

JACEK1

Key Member
Joined
Feb 10, 2013
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Interested in Language
Native Language
Polish
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Poland
Current Location
Poland
Hello all users!
You should have known better than to have left a bike unattended.
or
You should have known better than to leave a bike unattended.
Which of them is proper and acceptable to you?
Thank you.
I understand that "You should have known better than to have left a bike unattended" is equivalent to "You ought to have known better than to have left a bike unattended".
 

Raymott

VIP Member
Joined
Jun 29, 2008
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Academic
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English
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Australia
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Australia
They mean roughly the same in the context of the person having left his bike unattended, which is signaled by the "You should have known better" clause.
 

andrewg927

Senior Member
Joined
Apr 9, 2017
Member Type
Interested in Language
Native Language
English
Home Country
United States
Current Location
United States
Both are acceptable. I prefer the second one because the first one uses the present perfect twice (which seems unnecessary).
 
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