Carbon also formed covalent bond because carbon has 4 electron on outermost call so the four electrons gain /lose for stable this is not possible to gain or lose electrons so it is also formed covalent bondThank you
Idiot
Carbon form covalent bond because for completing its octet either it has to lose four electrons Or gain four electrons but both are not possible; so, carbon has share its electrons and making bonds by sharing of electrons is nothing but covalent bonding.
Carbon form covalent bond due to its tetravalency (4 valence electrons)