英文 現在完成式 once,twice,many times的位置與 用法是什麼？

We have fought on the court yard for many times since we were in the primary.
I have fought you once on the court yard.
I have just fought with you once.
I have already fought you twice on the court yard.
"once" adv usually end position for one time, on one occasion, only.
eg:-I have been in the new court yard once.(for this once, just for once, on this one occasion only,as an exception.)
eg:-The school has painted once every year.
eg:-He has seen the teacher in office once every month on conduct.
"many times":-a large number of, numerous, a lot of, lots of, plenty of,
egL-We have been at the meeting many times.
eg:-The window glass were broken many times by accidents.
eg:-I have wanted that prize in special school many times.
eg:-They have warned many times by the school masters.
eg:-We have wanted her company many times, but in vain.
eg:-She has starved many times while the parents have plenty in the case.
eg:-We have welcomed the job-opportunity master many times at end of term.
eg:-We have been to the football court many times.
eg:-We have been to the Principal's room once or twice.=once and again; once in a while,now and again; occasionally; a few times.once, twice, many times should be placed at end.... .Usage is condition of being used, using or by custom and correct English grammar in use; until you have made good use of it wrt present perfect tense+once, twice, many times.