The phrase "tends to be underestimated" is a grammatically correct and usable phrase in written English.
You can use it to illustrate that an aspect of something is often not given enough consideration. For example, "The importance of regular exercise in our physical and mental health tends to be underestimated."
While the lag-1 autocorrelation is well reproduced for precipitation occurrences, it tends to be underestimated for precipitation amounts.
Experience has shown that RF, SVM, and GLM models trained on such reference data produce biased values of PCC, for example, in forested areas absent the target species, PCC is overestimated, while in forested areas where a target species PCC is abundant, PCC tends to be underestimated.
As a result, the problem tends to be underestimated.
Sometimes, the danger of a threat tends to be underestimated when it seems more than familiar.
Hautmann et al. (2010) showed that the source depth tends to be underestimated by incorrectly assuming a uniform half-space.
Especially, for members with low shear span-to-depth ratio, if the arch action is not taken into account, the shear stiffness tends to be underestimated.
Germany's domestic preoccupations tend to be underestimated by outsiders.
The results suggest that when macroeconomic effects are neglected, optimal recycling ratios tend to be underestimated.
The ravages of the drug among 19th-century literary figures – though well known anecdotally – tend to be underestimated both by contemporary biographers and its victims.
Burned area extent tended to be underestimated as the MODIS product detected an estimated 48% of the burned area as determined from the reference data.
Individual shrub heights tended to be underestimated in the imagery, however, accuracy was higher for dense, compact shrubs compared with shrubs with thin branches.
