Matthew 17:16 V-AIP-3P
BIB: καὶ οὐκ ἠδυνήθησαν αὐτὸν θεραπεῦσαι
NAS: him to Your disciples, and they could not cure
KJV: disciples, and they could not cure
INT: and not they were able him to heal

Luke 9:40 V-AIP-3P
BIB: καὶ οὐκ ἠδυνήθησαν
NAS: to cast it out, and they could not.
KJV: out; and they could not.
INT: and not they were able

Hebrews 3:19 V-AIP-3P
BIB: ὅτι οὐκ ἠδυνήθησαν εἰσελθεῖν δι'
NAS: [So] we see that they were not able to enter
KJV: we see that they could not enter in
INT: that not they were able to enter in on account of