When should I use "now" and "by now"?
123263
"Now" vs "by now"
69668
Do 'already' and 'just' require the present perfect?
31690
What is difference between "using" and "by using"?
97441
Present perfect or simple past?
40342
'Have just finished' vs. 'Just finished': What is the difference?
156031
When a sentence includes a word like 'today' that indicates present time, can a past form of verb be used?
156790
'Next Monday' or 'on next Monday'?
35695
Past perfect or past simple with before
61232
When is this vs. when this is
98035
When do I use "was" and when do I use "were"
30284
"wait on" or "wait for"?
97095
Position of "yet" in a causative sentence
56411
Yet or Although?
14620
How to correctly use the present perfect tense
20196
Difference between "in time" and "on time"
29083
Is "this Monday" or "next Monday" the correct way to refer to the very next Monday in the future?
112219
When should I use "by" in present participle?