This section is from the book "The Science And Art Of Phrase-Making", by David Wolfe Brown. Also available from Amazon: The science and art of phrase-making.
339. When a word having the participial termination ing is immediately followed by a, an or and, the a tick (perpendicular or horizontal, according to convenience), may be written in the place of the ing dot to express ing a, ing an or ing and. Of the two allowable directions of the tick, that one is to be chosen which varies most from the direction of the stroke to which it is appended. Illustrations: giving a
doing a
loving a
losing a
340. The termination ing the may be expressed by writing, in place of the ing dot, the the tick disjoined. This tick Is struck in the direction of either p or chay, that direction being preferred which varies most from the direction of the stroke to which it is appended. Illustrations:
giving the
doing the
loving the
losing the
341. In the following phrases, ing a or ing the is to be written by the a or the tick, detached, the a tick being made perpendicular:
becoming a becoming the begging a begging the calling a calling the conducting a conducting the correcting a
correcting the costing a costing the drinking a drinking the forsaking a forsaking the gaining a gaining the
giving a giving the having a having the investing a investing the leaving a leaving the losing a losing the missing a
missing the refusing a refusing the sinking a sinking the smoking a smoking the striking a striking the taking a taking the
342. In the following phrases, ing a, where it occurs, is to be written with the detached tick (horizontal):
acknowledging a acknowledging the admiring a admiring the choosing a choosing the committing a committing the (con)cerning a (con)cerning the considering a considering the contesting a contesting the destroying a destroying the dividing a dividing the doing a doing the embracing a embracing the enjoying a enjoying the
exposing a exposing the expressing a expressing the obliging a obliging the observing a observing the producing a producing the reducing a reducing the representing a representing the reversing a reversing the suggesting a suggesting the thinking a thinking the trying a trying the weighing a weighing the
 
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