It has been used as the symbol... is correct here. Use Present Perfect when the action referred to started in the past, and either continues (or continues to have relevance) at the time of speaking.

May 6, 2013 · As reported by the NOAD in a note about the usage of used: There is sometimes confusion over whether to use the form used to or use to, which has arisen largely because …

Feb 14, 2024 · I am trying to explain to an ESL student how to understand when to treat "some" as plural and when to treat it as singular. One clear rule is when "some" is the subject followed...

Oct 27, 2015 · Officially it's "used to be" (and that should be used in written text), but even native English speakers cannot detect the difference between "used to be" and "use to be", when …

To me, "used to" and "used for" are incompatible, as shown in the examples below. However, I am unable to substantiate this. MS Word doesn't "see" the differences, so I turned to …

Apr 18, 2017 · Here is a question that has been nagging me for a few years: Which is the right usage: "Didn't used to" or "didn't use to?" Examples: We lived on the coast for years but we …

It is used within the AP Stylebook, for example. I have never seen a reference to and/or in any spoken English textbooks, and as such, when answering how it is spoken, I can only speak …

Jul 28, 2017 · If "used to" is a set idiomatic phrase (i.e. not a tense), then why would it change its form from "use to" to "used to" for the sentence as it does in the positive?

Jul 29, 2024 · In the sentence given though, help is quite definitely a verb, and used in an affirmative context, so it would be best to have either a plain infinitival or to -infinitival following it.

Apr 12, 2011 · Bryan Garner, Garner's Modern American Usage, fourth edition (2016) provides what I take to be the current (and traditional) formal prescriptivist view among U.S. usage …