The TEN-T network consists of two layers: a core network to be completed by 2030 and a comprehensive network feeding into this, to be completed by 2050.

Please remove spaces between words.
TheTEN-Tnetworkconsistsoftwolayers:acorenetworktobecompletedby2030andacomprehensivenetworkfeedingintothis,tobecompletedby2050.