| INDICATIVE |  | 
|  Present |  | 
I quadruple   You quadruple   He/She/It quadruples   We quadruple   You quadruple   They quadruple  
  |  Io quadruplico  Tu quadruplichi Egli/Ella/Esso quadruplica Noi quadruplichiamo Voi quadruplicate Essi/Esse/Loro quadruplicano
  | 
|  Imperfect |  | 
I was quadrupling   You were quadrupling   He/She/It was quadrupling   We were quadrupling   You were quadrupling   They were quadrupling  
  |  Io quadruplicavo Tu quadruplicavi Egli/Ella/Esso quadruplicava Noi quadruplicavamo Voi quadruplicavate Essi/Esse/Loro quadruplicavano
  | 
|  Perfect |  | 
I quadrupled   You quadrupled   He/She/It quadrupled   We quadrupled   You quadrupled   They quadrupled  
  |  Io quadruplicai Tu quadruplicasti Egli/Ella/Esso quadruplicò Noi quadruplicammo Voi quadruplicaste Essi/Esse/Loro quadruplicarono
  | 
|  Perfect |  | 
I have quadrupled   You have quadrupled   He/She/It has quadrupled   We have quadrupled   You have quadrupled   They have quadrupled  
  |  Io ho quadruplicato Tu hai quadruplicato Egli/Ella/Esso ha quadruplicato Noi abbiamo quadruplicato Voi avete quadruplicato Essi/Esse/Loro hanno quadruplicato
  | 
|  PlusPerfect |  | 
I had quadrupled   You had quadrupled   He/She/It had quadrupled   We had quadrupled   You had quadrupled   They had quadrupled  
  |  Io avevo quadruplicato Tu avevi quadruplicato Egli/Ella/Esso aveva quadruplicato Noi avevamo quadruplicato Voi avevate quadruplicato Essi/Esse/Loro avevano quadruplicato
  | 
|  Plusperfect |  | 
I had quadrupled   You had quadrupled   He/She/It had quadrupled   We had quadrupled   You had quadrupled   They had quadrupled  
  |  Io ebbi quadruplicato Tu avesti quadruplicato Egli/Ella/Esso ebbe quadruplicato Noi avemmo quadruplicato Voi aveste quadruplicato Essi/Esse/Loro ebbero quadruplicato
  | 
|  Future |  | 
I will quadruple   You will quadruple   He/She/It will quadruple   We will quadruple   You will quadruple   They will quadruple  
  |  Io quadruplicherò Tu quadruplicherai Egli/Ella/Esso quadruplicherà Noi quadruplicheremo Voi quadruplicherete Essi/Esse/Loro quadruplicheranno
  | 
|  Future perfect |  | 
I will have quadrupled   You will have quadrupled   He/She/It will have quadrupled   We will have quadrupled   You will have quadrupled   They will have quadrupled  
  |  Io avrò quadruplicato Tu avrai quadruplicato Egli/Ella/Esso avrà quadruplicato Noi avremo quadruplicato Voi avrete quadruplicato Essi/Esse/Loro avranno quadruplicato
  | 
| SUBJUNTIVE |  | 
|  Present |  | 
I (that )may quadruple   You (that )may quadruple   He/She/It (that )may quadruple   We (that )may quadruple   You (that )may quadruple   They (that )may quadruple  
  |  Io quadruplichi Tu quadruplichi Egli/Ella/Esso quadruplichi Noi quadruplichiamo Voi quadruplichiate Essi/Esse/Loro quadruplichino
  | 
|  Imperfect |  | 
I (that )might quadruple   You (that )might quadruple   He/She/It (that )might quadruple   We (that )might quadruple   You (that )might quadruple   They (that )might quadruple  
  |  Io quadruplicassi Tu quadruplicassi Egli/Ella/Esso quadruplicasse Noi quadruplicassimo Voi quadruplicaste Essi/Esse/Loro quadruplicassero
  | 
|  Perfect |  | 
I (whether) quadrupled   You (whether) quadrupled   He/She/It (whether) quadrupled   We (whether) quadrupled   You (whether) quadrupled   They (whether) quadrupled  
  |  Io abbia quadruplicato Tu abbia quadruplicato Egli/Ella/Esso abbia quadruplicato Noi abbiamo quadruplicato Voi abbiate quadruplicato Essi/Esse/Loro abbiano quadruplicato
  | 
|  Pluperfect |  | 
I (whether) had quadrupled   You (whether) had quadrupled   He/She/It (whether) had quadrupled   We (whether) had quadrupled   You (whether) had quadrupled   They (whether) had quadrupled  
  |  Io avessi quadruplicato Tu avessi quadruplicato Egli/Ella/Esso avesse quadruplicato Noi avessimo quadruplicato Voi aveste quadruplicato Essi/Esse/Loro avessero quadruplicato
  | 
| CONDITIONAL |  | 
|  Present |  | 
I would quadruple   You would quadruple   He/She/It would quadruple   We would quadruple   You would quadruple   They would quadruple  
  |  Io quadruplicherei Tu quadruplicheresti Egli/Ella/Esso quadruplicherebbe Noi quadruplicheremmo Voi quadruplichereste Essi/Esse/Loro quadruplicherebbero
  | 
|  Perfect |  | 
I would have quadrupled   You would have quadrupled   He/She/It would have quadrupled   We would have quadrupled   You would have quadrupled   They would have quadrupled  
  |  Io avrei quadruplicato Tu avresti quadruplicato Egli/Ella/Esso avrebbe quadruplicato Noi avremmo quadruplicato Voi avreste quadruplicato Essi/Esse/Loro avrebbero quadruplicato
  | 
| IMPERATIVE |  | 
|  Present |  | 
let me quadruple   quadruple   let him quadruple   let us quadruple   quadruple   let them quadruple  
  |  Io - Tu quadruplica  Egli/Ella/Esso quadruplichi Noi quadruplichiamo Voi quadruplicate Essi/Esse/Loro quadruplichino
  | 
| PARTICIPLE |  | 
|  Present |  | 
quadrupling  
  |  quadruplicante
  | 
|  Perfect |  | 
quadrupled  
  |  quadruplicato quadruplicati...
  | 
| INFINITIVE |  | 
|  Present |  | 
to quadruple  
  |  quadruplicare
  | 
|  Perfect |  | 
have quadrupled  
  |  avere quadruplicato
  | 
| GERUND |  | 
|  Present |  | 
quadrupling  
  |  quadruplicando
  | 
|  Perfect |  | 
having quadrupled  
  |  avendo quadruplicato
  |