Parsing  Scroll down, or click on linked line numbers. 
( Line1 ) ( Line 2 ) ( Line3 ) ( Line 4 )

Line 1
Varus 
   masculine singular nominative

me
   masculine singular accusative, direct object of duxerat

meus
   masculine singular nominative, possessive adjective agreeing with Varus

ad
   preposition governing the accusative

suos
   masculine plural accusative, possessive adjective agreeing with amores

amores
   masculine plural accusative, object of ad

Line 2
visum
   supine

duxerat
   3rd person singular pluperfect indicative active

e
   preposition governing the ablative

foro
   neuter singular ablative, object of e

otiosum
   masculine singular accusative , agreeing with me

Line 3
scortillum
   neuter singular nominative

ut
   adverb

mihi
   masculine singular dative

tum
   adverb

repente
   adverb

visumst
   3rd person neuter singular perfect indicative passive, contraction of visum est

Line 4
non
   adverb

sane
   adverb

illepidum
   neuter singular nominative, agreeing with scortillum

neque
   conjunction

invenustum
   neuter singular nominative, agreeing with scortillum