More than just throwing anything you want after two s, there are a number of specific patterns you will notice if you want to go beyond using the simpler 越来越.

Used with Only One Subject

Structure

Subj. +  + Verb +  + Adj.

or

Subj. +  + Verb 1 +  + Verb 2

Examples

Used with Two Different Subjects

Structure

Subj. 1 +  + Verb,Subj. 2 +  + Adj.

or

Subj. 1 +  + Verb 1,Subj. 2 +  + Verb 2

Examples

With the Same Verb twice

This pattern is limited to a small number of single-syllable verbs related to sensory perception, but you do hear it used.

Structure

Subj. +  + Verb +  +  + Verb

Examples

See also

Sources and further reading

Books