appear, be, feel, look, seem
lie
He was lying ill in bed.

become, be taken (BrE), fall, get, grow
remain
make sb
I can't eat bananas. They make me ill. (esp. BrE)
That type of government corruption makes me ill.

critically, dangerously, desperately, extremely, gravely, really, seriously, severely, terribly, very
His mother is seriously ill in the hospital.

almost
Robyn was almost ill with excitement and outrage.

pretty, quite, rather, slightly
genuinely
violently
She was taken violently ill and had to be put to bed.

acutely
chronically
chronically ill patients

fatally, incurably, mortally, terminally
a hospice for the terminally ill

mentally, physically
the problems faced by mentally ill people

with
He fell ill with cholera in 1849.

from
They arrive at the hospital ill from malnutrition.

Ill is used with these nouns:
effect, feeling, fortune, health, luck, omen, person, relative, temper, will

Ill is used with these adjectives:
informed, suited

Ill is used with these verbs:
afford