I think it's buttercup
see your other (duplicate) post
the first is a Cirsium, maybe Cirsium rivulare
the second Lysimachia atropurpure
3 is Nectaroscordum silicium
I don't know 'White Swan' but it's euphorbia and I think it is flowering.
the leaves are similar but the stems and manner of growth are different. Can we have a look underneath?
I think they're ornithogalum, Star of Bethlehem. Pretty flowers, later than other similar bulbs and very tatty before flowering is over. Quick to multiply as well, maybe a bit too quick
agree with borderline. Dianthus. I had some that looked like that, from a packet of seed called Dianthus 'Loveliness'
borage seeds a lot but easily removed. I wouldn't call it a problem plant