shows why the use of while is incorrect.
In general, the writer will do well to use while only with strict literalness, in the sense of during the time that.
Whom. Often incorrectly used for who before he said or similar expressions, when it is really the subject of a following verb.
| His brother, whom he said would send him the money | His brother, who he said would send him the money |
| The man whom he thought was his friend | The man who (that) he thought was his friend (whom he thought his friend) |
Worth while. Overworked as a term of vague approval and (with not) of disapproval. Strictly applicable only to actions: “Is it worth while to telegraph?”
| His books are not worth while. | His books are not worth reading (are not worth one's while to read; do not repay reading; are worthless). |
The use of worth while before a noun (“a worth while story”) is indefensible.
[Would.] A conditional statement in the first person requires should, not would.
I should not have succeeded without his help.
The equivalent of shall in indirect quotation after a verb in the past tense is should, not would.