(1) a. You must not use abrasive cleaners on the printer casing.
b. The use of abrasive cleaners on the printer casing is not recommended.
In the first sentence use is a verb, and in the second a noun, that is, we have a case of lexical
ambiguity. An English-French dictionary will say that the verb can be translated by (inter
alia) se servir de and employer, whereas the noun is translated as emploi or utilisation.
One way a reader or an automatic parser can find out whether the noun or verb form of use
is being employed in a sentence is by working out whether it is grammatically possible to
have a noun or a verb in the place where it occurs. For example, in English, there is no
grammatical sequence of words which consists of the ✛ V ✛ PP — so of the two possible
parts of speech to which use can belong, only the noun is possible in the second sentence
(1b)