The phrase "acting constantly" is correct and usable in written English.
It can be used to describe someone who is consistently performing a particular action or behavior over a period of time.
Example: "She is acting constantly to improve her skills, attending workshops and practicing daily."
Alternatives: "behaving consistently" or "performing continuously".
When Newton identified gravitation as a property inherent in corporeal matter, Huygens thought that absurd and looked for an agent acting constantly according to certain laws.
"When you combine that with his liking of the center stage, it means he is going to be acting constantly to promote any movement in the world that goes against what he would perceive as the U.S.-dominated agenda".
It becomes apparent that during normal joint function distracting forces are acting constantly on the labrum through the medium of the biceps tendon and glenohumeral ligaments; these forces achieve, gradually, separation of this triangular fibrocartilage from its bony attachment.
This usually creates a person who's constantly acting entitled because well... they do always get what they want!
Nora's constantly acting, even within her acting.
When you're acting, you're constantly trying to get one step ahead, up to the next level.
(The talented cast members — Javier Lorenzo, Juan Minujin, Maria Ines Sancerni and the exceptional Pilar Gamboa — never show the strain of acting in a constantly spinning world).
The conception of the role is clearly that Selfridge is constantly acting, putting on a show for family, lovers, customers, nervous investors.
Creating accurate, targeted predictions about what an individual is like and their "inner demons", in a context where Facebook is also acting on that constantly, remains hard.
"Unfortunately some of the major countries are constantly acting in a provocative way in the region and creating a kind of disorder in the region," Mr. Larijani was quoted as saying by the semiofficial Fars News Agency.
On Wednesday, his office stated that "Israel is committed to freedom of religion for worshipers of all faiths at all holy places," including the Cave of the Patriarchs, where Israel is "constantly acting to ensure proper conditions for prayer, for both Jews and Muslims".
