Are there difference between those sentences?
Alex is getting married next month.
Alex will get married next month.
Seems that the first one is expressed in present continues, and the s
Yes there is a difference.
Trees are getting cut down refers to an action that is in progress.
Someone is cutting the trees.
It is the form encountered more frequently.
Trees getting cut.
Which one is correct- he did not succeed to get the job though he tried his level best.
He did not succeed in getting the job though he tried his level best.
Book says second one is correct.
To get is the normal form and would be best for everyday use.
However book titles are allowed artistic license.
Regarding the to getting forms, i would think of it this way:
- the essential.