Estar a la vanguardia de

[ROBINDESBOIS]

can anybody put an example with be in the vanguard of in english ?

[Tomisimo]

estar a la vanguardia
to be in the vanguard
to be on the forefront
to be on the cutting edge
to be on the bleeding edge

Vanguard is used more for the arts and forefront/cutting edge are more general.

[ROBINDESBOIS]

Thank you for your help

[poli]

we often use avante garde