Collocations for sustain - verb

no longer
The soil was so badly eroded it could no longer sustain crop production.

barely
indefinitely
still

be able to, can
be unable to, cannot
help (to)
be difficult to, be hard to
This relationship would be very difficult to sustain.

be impossible to
be enough to, be sufficient to
be necessary to

Sustain is used with these nouns as the object:
balance, casualty, concussion, damage, economy, erection, excellence, fracture, growth, illusion, injury, interest, loss, momentum, pretence, profitability, recovery, standard