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in the PONS Dictionary

I. clean [kli:n] ADJ

1. clean (free of dirt):

2. clean (free from bacteria):

3. clean (fair):

5. clean (smooth):

7. clean (blank):

clean piece of paper

II. clean [kli:n] N

III. clean [kli:n] ADV

IV. clean [kli:n] VB trans

clean down VB trans

clean out VB trans

1. clean out (clean thoroughly):

clean out with water

2. clean out (make penniless):

II. clean up VB trans

III. clean up VB intr

1. clean up (make clean):

clean-cut [ˌkli:nˈkʌt] ADJ (straight)

clean-shaven [ˈkli:nˈʃeɪvn] ADJ

clean-up [ˈkli:nʌp] N

Present
Iclean
youclean
he/she/itcleans
weclean
youclean
theyclean
Past
Icleaned
youcleaned
he/she/itcleaned
wecleaned
youcleaned
theycleaned
Present Perfect
Ihavecleaned
youhavecleaned
he/she/ithascleaned
wehavecleaned
youhavecleaned
theyhavecleaned
Past Perfect
Ihadcleaned
youhadcleaned
he/she/ithadcleaned
wehadcleaned
youhadcleaned
theyhadcleaned