Yes, this is easy but for gods sake DO NOT USE VLAN1, use vlan11 or 21 or 111. VLAN1 is the default vlan of the bridge which thou shalt not USE or be named. ( didnt you go to Hogwarts?)
Bridge port settings
add bridge=bridge interface=ether1 pvid=11 ingress-filtering=yes frame-types=untagged-and-priority {access port}
add bridge=bridge interface=ether2 pvid=11 ingress-filtering=yes frame-types=untagged-and-priority {access port}
add bridge=bridge interface=ether3 pvid=2 ingress-filtering=yes frame-types=untagged-and-priority {access port}
add bridge=bridge interface=ether4 ingress-filtering=yes frame-types=only-tagged {trunk port}
Bridge vlan settings
add bridge=bridge tagged=bridge,ether4 untagged=ether1,ether2 vlan-ids=11
add bridge=bridge tagged=bridge,ether4 untagged=ether3 vlan-ids=2
What you need to read instead is this excellent reference…
http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1