facing the issue with identifying singular or plural form of word

Hi ,

Language tool is not able to find out the singular and the plural form of any word .
So that the meaning of the sentence is not getting properly.

for instance

  1. Heads of the screw — ( it should be “Heads of the screws”)
  2. Head of the screws ---- ( It should be "Head of the screw " )

In above both the condition language tool can’t able correct the sentence .
Language tool mentioned both sentence are correct.

Please help me with this or give me suggestion how to handle this issue .

PFA

Regards

Amit