"various forms of activities" is grammatically correct and can be used in written English
It is commonly used to describe a range or variety of different types of activities. Example: "The school offers various forms of activities for students to participate in, including sports, clubs, and community service projects."
To ease such feelings, they resorted to various forms of activity, including surfing the Internet, to fill up their "empty" lives.
We show that Munc13, an active-zone protein essential for exocytosis, also controls presynaptic voltage-gated calcium channel (VGCC) function dictating their behavior during various forms of activity.
In our opinion, however, active ageing cannot be reduced to the sum of its indicators as various forms of activity are not necessarily complementary (e.g. possible tension between work and care responsibilities).
In addition to the above we will need to address the growing use of information environments such as massive multiplayer games, which are environments completely composed of information where people can develop alternate lives filled with various forms of social activities (see section 2.3).
Physical activity was assessed by the CHAMPS Community Healthy Activities Model Programm for Seniors) instrument (26, 27), which measures weekly caloric expenditure of light, moderate, and heavy physical activity by assessing the frequency of engaging in various forms of physical activity.
The term 'planning' can refer to a wide range of possible activities from simply forming some intention to act (I am planning to quit), through to various forms of preparatory activity.
For the authorities, it blurs the very important distinction between criminal gangs, which do of course exist, and ordinary friendship groups, who may or may not be involved in various forms of illegal activity.
Various forms of physical activity (PA) can improve a variety of health outcomes and reduce health care costs, but the proportion of the US population engaging in the recommended amount of PA is low and even lower among those with arthritis.
Though they're behind various forms of illegal activity, the local cops are in their pockets and the Peaky Blinders are the law in their rough neighborhood.
In a previous study we have reported on the relation between various forms of physical activity and the risk of acute myocardial infarction [ 17].
