The phrase "expend great effort" is correct and usable in written English.
It is typically used to refer to putting a lot of energy and work into something. For example, "I expended great effort to finish the report by the deadline."
Many expend great effort to compensate or hide it.
It is natural to expend great effort on analyzing the belonging of patterns with large uncertainties.
Indeed, officials involved with reconstruction expend great effort revising the overly optimistic projections made by the American occupation authorities in previous months.
But, he pointed out, the real problem is "the regime in Tehran," which he predicts will expend great effort to keep Assad in power.
We shall elaborate upon this point because it is not uncommon for parties to expend great effort in appeals before us to establish which of the two standards is applicable where in fact their operation is precisely the same.
"Many of these scientists collaborate closely with farmers who not only are keen to protect native vegetation but who sometimes also need to expend great effort to reverse problems caused by previous land clearing," it says.
As Mr. Hefner later proposed, "Playboy exists, in part, as a motivation for men to expend greater effort in their work, develop their capabilities further and climb higher on the ladder of success".
We found that individual differences in DA function in the left striatum and ventromedial prefrontal cortex were correlated with a willingness to expend greater effort for larger rewards, particularly when probability of reward receipt was low.
West Africa would remove a huge weight from an already overburdened criminal justice system if it were to decriminalise drug use and possession, expand health and social services for those with problematic use, and expend greater effort in pursuing … traffickers … and rooting out corruption from within".
In the City of the Sun no occupation is vile or base, and all are of equal dignity in fact, those workers who are required to expend greater effort, such as artisans and builders, receive more praise.
Specifically, when given a choice between expending little effort to obtain a small reward, or to expend greater effort to obtain a greater reward, individuals with higher levels of anhedonia should make fewer greater-effort/greater reward choices.
