outside a school (especially university)

a lot / a majority

largely; mostly

time / hour / the hours or time when something happens

to spend, to consume / to waste, to squander

activity, work, operation

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

to research, to study

a piece of research, a study, investigation

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend