Group 1 analyse, verb consider in detail and subject to an analysis in order to discover essential features or meaning break down into components or essential features make a mathematical, chemical, or grammatical analysis of

potential, adj
existing in possibility
a potential problem
expected to become or be; in prospect

previous, adj
just preceding something else in time or order
(used especially of persons) of the immediate past
too soon or too hasty

primary, noun
a preliminary election where delegates or nominees are chosen
one of the main flight feathers projecting along the outer edge of a bird's wing
(astronomy) a celestial body (especially a star) relative to other objects in orbit around it
coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit

primary, adj
of first rank or importance or value; direct and immediate rather than secondary
primary goals
not derived from or reducible to something else; basic
a primary instinct
most important element
of or being the essential or basic part
of primary importance