Please help me to identify these pretty plants!
The plant with white/rose flowers is Polygonum aviculare (common knotgrass). Usually considered weed.
Additionally I would say Capsella bursa-pastoris, for the leaves behind, but I'm not sure.
The three leaved plant (which I'm assuming you're asking about) looks like Trifolium repens (white clover). Its an herbaceous perennial that grows where there a lack of nitrogen, and if often found in lawns.