The phrase "once commenced" is correct and usable in written English.
You can use it to describe when an event or activity begins or begins again after a period of interruption. For example: "The project was delayed due to rain, but it will once commence tomorrow."
In another chapter in "The Quotable Abigail Adams," called "War," Abigail reminds us that it is sometimes better to "suffer temporary privations, than the calamities of War, which when once commenced, no one can calculate or estimate".
A few seconds after his first effort (it was the male) he was joined by his mate, and she at once commenced to respond with a peculiar, low, buzzing or grunting note, like 'gaw-gaw-gaw,' undoubtedly a note of approval or endearment.
We're surrounded by a sea of darkness!," thus signalling the end of that strange, ritualistic intermission; and then, with much relief, we turned or took our gazes away from the dark window and, talking animatedly all at once, commenced to drink the night away.
The failure in the vehicle color, once commenced, was seen continued consecutively with three to four final products.
However, once commenced, the reaction apparently occurs steadily.
Once commenced on ART the rate of both scheduled and unscheduled visits fell until 17to3232 weeks on ART, after which they stabilized.
If he is ordered to close his eyes while in the erect posture, he at once commences to totter and swing from side to side; the insecurity of his gait also exhibits itself more in the dark".
Infusion adjusted to BSL 6 10 mmol/L, tested hourly once infusion commenced Dextrose 50%2525 mL For management of hypoglycaemia (BSL < 3.5 mmol/L).
Once hatching commenced, embryos were checked every 2 h.
Treatment with lenalidomide (10 mg p.o. once daily) commenced in July 2004.
If no curcumin-induced toxicities (CIT) were observed, daily oral curcumin was continued once chemotherapy commenced.
