[恐「おそ」]れがある => There is a chance of A N2
Potential, Possibility
恐らく => perhaps; likely; probably; I dare say ~ N2
恐れがある => it is feared that; to be in danger of; to be liable to; possibility of; risk of ~ N2
にする => にする N4
~にたえる (耐える)    => bear doing ~ N1
する => become ... N4
Situation, case
なる => become N5
あるいは~あるいは~ => or, either N3
Line up, list
~からなる(成る)      => Consists of; formed to N2
~ないでいる/~ずにいる => ~Still not... N1
Invariant
...かける => Impact N3
Act
ている => Repeat N5
Continuous