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 the …

Oct 27, 2015 · I am trying to find out if this question is correct. Did Wang Bo used to be awkward? Should I write "use to be" instead of "used to be," or is "used to be" correct in this sentence?

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...

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 "Essential grammar...

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?

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 didn't use to go …

Jun 13, 2019 · What is the negative form of "I used to be"? I often hear "I didn't used to be" but that sounds awfully wrong in my ears.

Jul 29, 2023 · Spook was actually used by black people to refer to white people, presumably on the notion of “white” ghosts. spook n. [SE spook, a ghost] (US black) a white person. 1939 [US] P.E. …

Aug 28, 2014 · Meaning of "by" when used with dates - inclusive or exclusive [duplicate] Ask Question Asked 11 years, 3 months ago Modified 11 years, 3 months ago