Mike, just deleted the original post because there were tweo, could you switch this answer to the other one? Sorry. Bad timing.
In the first sentence, "authority" should be "authorities", at least in American English. The second issue of the first sentence is a matter of style more than grammar. You have a compound verb made up of "is being held" and "did (not) sail". From the standpoint of parallelism, that could be improved. One could add a subject to the second clause and/or a different conjunction.Originally Posted by koko
The ship is still being held by the authorities; therefore, it did not sail
from the port yet.
There are some pending legal cases involving the ship owner. The names of the lawyers handling the case are:
Shouldn't be "it has not sailed from the port yet"?Originally Posted by MikeNewYork