proficient with or proficient in?
108165
"proficient " What is the correct usage?
15478
passing vs having passed
111157
Usage of indefinite article and too
115870
"Practise" vs. "practice"
93397
There is (there's) vs.There are
92634
Those vs They vs That
2182
vs. . Which to use?
121247
Is it required to use "that" here?
111664
A gerund or use a regular noun?
77991
"Knowledge of" vs. "knowledge on"
152119
"regarding", "according to" or "in"
29914
What is the difference between  and ?
120089
"as bad at English as me" vs. "as bad at English as I"
65340
Proficiency with specific weapons vs 'simple and martial'?
117857
"She speaks an impeccable English" vs "She speaks impeccable English"
76513
Correct usage of ‘on’, ‘at’ and ‘in’
93677
Difference between and usage of "Them" and "These/those"