A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

in hard condition • in hard conditions
in hard condition —(Sport) in good shape; physically fit: The
horses are both in hard condition, so it [race] can come off in
ten days.
in hard conditions —undergoing hardships: The distinction
is blurred by species that grow periodically in hard conditions
and aperiodically where they are protected.
in haste • in one’s haste
in haste —in a hurry: It is the general fault of physicians,
they are so in haste, that they never hear out the case.
in one’s haste —owing to one’s haste or hurry: In my haste
I forgot to lock the car door.
in heaven • in the skies
in heaven —in the celestial abode of immortal beings: This
woman actually imagines that there will be no slaves in heaven.
in the skies —(also: in the clouds) not acting according to the
realities of life; given to day-dreaming: He is a philosopher.
His mind is always in the skies.
Note: 
The expression does not correlate in meaning with the
phrase on cloud nine—(also: on cloud seven) extremely happy;
in a euphoric state: He was finding it impossible to get any
sense out of Rolf, who was on cloud nine — or at least in a
world of his own — for the entire week.
in leaf • in the leaf
in leaf —(of a plant) having its leaves expanded: The farm-
house can only just be seen from the road when the trees are
not in leaf.
in the leaf —(of tobacco) unstemmed and uncut : In the
process of manufacturing cigars they take tobacco in the leaf,
put it first on racks to dry, then in barrels to sweat…
in league with someone • in the same league with
someone
in league with someone —in partnership with smb., especially
for a dubious purpose: The message is intercepted by the tele-
graph operator, who is in league with the outlaws and passes
the information along to them.
in the same league with someone —(usually negat.) in the same
class or on the same level of excellence as another person: It
is undesirable to admit someone who is “not in the same
league” with typical students at that school. Cf.: out of one’s
league with someone — surrounded by people who are more skilful
and experienced than oneself: I have only played drums for three
quarters of a year; I am out of my league with the guys in this
band.