Sri Aurobindo
Letters on Poetry and Art
SABCL - Volume 27
Part 2. On His Own and Others’ Poetry
Section 3. Practical Guidance for Aspiring Writers
Remarks on English Usage
Some Questions of Pronunciation and Usage [3]
As between the forms — “with a view to express” and “with a view to expressing” — the Oxford Concise calls the former vulgar.
I don’t agree with Oxford. Both forms are used. If “to express” is vulgar, “to expressing” is cumbrous and therefore inelegant.