stretch

張る(はる)	To physically make something longer. Stretch a rubber-band、 stretch a canvas on a paint frame, pitch a tent. Also to extend one’s influence.

引張る(ひっぱる)	To drag (a kid by the hand / a box along the ground). Also to pull on a rope

伸ばす(のばす)	Stretch your muscles – to grow your hair – develop your talents.

延ばす(のばす)	To stretch IN TIME – to extend, prolong, delay something.