Wed 3 Apr, 2013 08:01 am - Hi Dear,
I thought that you are enough intelligent to find my mistake. (in [b]the first[/b][i][u][/u][/i] sentence "have been".....)
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Wed 3 Apr, 2013 12:35 am - let me bring another example.
Effects caused by the air pollution are underestimated.
Effects, which [b]have been[/b] caused by the air pollution are underestimated.
"have been" has... (view)
Mon 1 Apr, 2013 11:37 pm - Hi Dear,
In some passive sentences we can see that the to be verb has been omitted from the usual structure of this type of sentence and only past participle verb was used. For instance,... (view)
