Is a deverbal noun with at least two adjectives plural, or can it be?
An example sentence (from research regarding medical monitoring of vital signs):
Continuous and automated monitoring is...
In this example, the monitoring is both continuous and automated at the same time, i.e. it is one thing (albeit having two properties), thus the singular form is is used.
Could or should this be written as:
Continuous and automated monitoring are...
In the latter example the use of are refers to continuous monitoring and automated monitoring as being two types of monitoring, i.e. two things, thus the plural form is used.
Another example with different meaning:
Fast and slow driving is/are...
In this last example, are is probably better, because driving can't logically be both fast and slow simultaneously. This is a clear example of the subject being plural. In general however, the subject can be singular and have two or more adjectives, am I correct?
I'm not a native English speaker, but I have a feeling both situations could be used correctly. What are the differences in both semantics and grammar?
And am I correct about monitoring being a deverbal noun in this case, instead of a gerund? I've looked up what kind of word it could be and differences between verbal and deverbal nouns and I came to the conclusion it was the latter.
On a side note: can automatic be used instead of automated?