Find the error part: the two states frequently has differences over the use of the river water, especially during the summer months ?

Question

Find the error part:  the two states frequently has differences over the use of the river water, especially during the summer months ?

Admin · Accepted Answer

has differences

Admin · Answer

Over the use of the river water

Admin · Answer

The two states frequently

Admin · Answer

especially during the summer months

Q. Find the error part: the two states frequently has differences over the use of the river water, especially during the summer months ?