It has been developed vs It is being developed
55834
"is being" vs "has been"
102512
What is the difference between "being" and "having been" in this context?
46370
"He has yet to" vs. "he is yet to"
27003
When to properly use Present Progressive statements?
118270
Difference between "has + verbed" and "had + verbed"
134223
dummy "it" + was/were?
138641
"It isn't" vs. "it's not"
40495
What's the difference between "has been living" and "has lived"?
5929
"I have" vs "I have got"
127529
Correct use of "is having"
125890
Difference between "does have" and "has"
119136
"done" vs "have done"
10637
difference between "Have been" and "was"
15721
"Is it proved that ...?" vs. "Has it been proven that ...?"
15051
Grammatically, what is "It" in the following sentence?
29501
Is it acceptable to use "is become" instead of "has become"?
149189
"I have been 'verb-ing'" vs. "I had been 'verb-ing'"