( You ( ( may ( need ( to ( ( divide ( the ( irrigation time ) ) ) ( into ( ( ( several ( shorter periods ) ) or ) cycles ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD may) (VP (VB need) (S (VP (TO to) (VP (VB divide) (NP (DT the) (NN irrigation) (NN time)) (PP (IN into) (NP (NP (JJ several) (JJR shorter) (NNS periods)) (CC or) (NP (NNS cycles))))))))) (. .)))
You may need to divide the irrigation time into several shorter periods or cycles.
(ROOT (S (NP (NNS Bacteria)) (VP (MD may) (VP (VB divide) (NP (NP (QP (JJ several) (NNS times))) (NP (DT an) (NN hour))))) (. .)))