they have since been vs they have since then

Both phrases are correct, but they are used in slightly different contexts. 'They have since been' is commonly used to indicate that something has happened or changed since a particular point in time. On the other hand, 'they have since then' is less common and redundant, as 'since' already implies a point in time. Therefore, 'they have since been' is the more commonly used and concise option.

Last updated: March 21, 2024

they have since been

This phrase is correct and commonly used in English.

This phrase is used to indicate that something has happened or changed since a particular point in time.

Show examples from the web [+]

... We are mainly concerned with adding two further amines to the banned list because they have since been categorised as carcinogenic. volume_up more_vert.
English We are mainly concerned with adding two further amines to the banned list because they have since been categorised as carcinogenic. volume_up ...
Jun 5, 2019 ... The Antitrust Division first entered into consent decrees with ASCAP and BMI in 1941 and they have since been modified – the ASCAP decree ...
... spherical molecules made entirely of carbon-were first found in the laboratory, they have since been found in nature, formed in fissures of ...

Alternatives:

they have been since

they have since then

This phrase is correct but less common and slightly redundant.

This phrase is used to indicate that something has happened or changed since a particular point in time, but it is less commonly used than 'they have since been.'

Show examples from the web [+]

Aug 20, 2015 ... So I bought a MoboBundle off of TigerDirect.ca last month, they have since then changed my order to just one component of the bundle without ...
Jan 14, 2016 ... ... had the game blown up in 2013, China would not have had the ability to accumulate what they have since then. Call this “dropping pennies ...
They have since then cleaned up their act. Oddly enough, it's Euless P.D. who's now having problems with Irving P.D. Such as falsifying citations to read Irving ...
They have since then rewarded many of Sweden's greatest industry players, startups and tech exports such as Skype, Soundcloud, TrueCaller and Zound ...

Alternatives:

they have been since then

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they have since been vs they have since then