The player can use whitsever moves as who likes, whenever, as long as there are enough fully-charged action gauges--therefore, if all three gauges are charged, three single-gauge moves can be carried out consecutively with no hold between them.
The player can use whitsever moves as who likes, whenever charged action gauges. This was as long as there are enough fully. Three single-gauge moves can be carried out consecutively with no hold between them. This was therefore. All three gauges are charged.