Can I use gerunds with the word "concede" without using preposition "to" as in the sentence below?
He concedes killing his wife.
Learn English – Use of gerund without preposition “to”
gerundsgrammaticalityprepositionstransitivityverbs
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My opinion: plural except in a special case (see below). The only explicit statements I've found to corroborate my opinion are on Answers.com regarding subject/verb agreement and a chat board for college students, neither of which strikes me as particularly authoritative. Nothing I can find indicates that anything other than a plural is appropriate when the subject of the sentence is two of anything conjoined by "and," including two gerunds.
Special case: gerunds that go together to form a unit of activity: drinking and driving, or texting and driving, etc. In those cases, when the point is the combined act, then a singular is nearly always used. Now that I think about it, the singular or plural helps differentiate: "walking and chewing gum is a skill mastered by most people" versus "walking and chewing gum are physically active tasks, thinking is not, but all three burn calories."
When talking about people it's either "She is married to him" or "She married him". When talking about objects the preposition "with" is used: "This wine marries well with beef"
Note: the above is an oversimplification - marry "with" was certainly used in past literature. The following chart shows the relationship, married with is multiplied by 10 otherwise it just shows up as a line at the bottom. This also makes no attempt at separating things like "wine married to beef", which might explain, or not, the apparent increase of usage in the last 50 years
Best Answer
Actually, it appears that no one says any of those, perhaps because concede does not work that way:
On the other hand, if you swap admits in for concedes, now you get a more interesting picture:
And here is the past-tense version of the same:
I find especially curious that this only started getting said come the 20th century. That part I don’t know what to make of.
In any event, it appears that admitting doing anything is fairly new to the English language, and following that admit with a to before an -ing form is a very recent phenomenon indeed.