| INDICATIVE |  | 
|  Present |  | 
I stem   You stem   He/She/It stems   We stem   You stem   They stem  
  |  Io arresto  Tu arresti Egli/Ella/Esso arresta Noi arrestiamo Voi arrestate Essi/Esse/Loro arrestano
  | 
|  Imperfect |  | 
I was steming   You were steming   He/She/It was steming   We were steming   You were steming   They were steming  
  |  Io arrestavo Tu arrestavi Egli/Ella/Esso arrestava Noi arrestavamo Voi arrestavate Essi/Esse/Loro arrestavano
  | 
|  Perfect |  | 
I stemed   You stemed   He/She/It stemed   We stemed   You stemed   They stemed  
  |  Io arrestai Tu arrestasti Egli/Ella/Esso arrestò Noi arrestammo Voi arrestaste Essi/Esse/Loro arrestarono
  | 
|  Perfect |  | 
I have stemed   You have stemed   He/She/It has stemed   We have stemed   You have stemed   They have stemed  
  |  Io ho arrestato Tu hai arrestato Egli/Ella/Esso ha arrestato Noi abbiamo arrestato Voi avete arrestato Essi/Esse/Loro hanno arrestato
  | 
|  PlusPerfect |  | 
I had stemed   You had stemed   He/She/It had stemed   We had stemed   You had stemed   They had stemed  
  |  Io avevo arrestato Tu avevi arrestato Egli/Ella/Esso aveva arrestato Noi avevamo arrestato Voi avevate arrestato Essi/Esse/Loro avevano arrestato
  | 
|  Plusperfect |  | 
I had stemed   You had stemed   He/She/It had stemed   We had stemed   You had stemed   They had stemed  
  |  Io ebbi arrestato Tu avesti arrestato Egli/Ella/Esso ebbe arrestato Noi avemmo arrestato Voi aveste arrestato Essi/Esse/Loro ebbero arrestato
  | 
|  Future |  | 
I will stem   You will stem   He/She/It will stem   We will stem   You will stem   They will stem  
  |  Io arresterò Tu arresterai Egli/Ella/Esso arresterà Noi arresteremo Voi arresterete Essi/Esse/Loro arresteranno
  | 
|  Future perfect |  | 
I will have stemed   You will have stemed   He/She/It will have stemed   We will have stemed   You will have stemed   They will have stemed  
  |  Io avrò arrestato Tu avrai arrestato Egli/Ella/Esso avrà arrestato Noi avremo arrestato Voi avrete arrestato Essi/Esse/Loro avranno arrestato
  | 
| SUBJUNTIVE |  | 
|  Present |  | 
I (that )may stem   You (that )may stem   He/She/It (that )may stem   We (that )may stem   You (that )may stem   They (that )may stem  
  |  Io arresti Tu arresti Egli/Ella/Esso arresti Noi arrestiamo Voi arrestiate Essi/Esse/Loro arrestino
  | 
|  Imperfect |  | 
I (that )might stem   You (that )might stem   He/She/It (that )might stem   We (that )might stem   You (that )might stem   They (that )might stem  
  |  Io arrestassi Tu arrestassi Egli/Ella/Esso arrestasse Noi arrestassimo Voi arrestaste Essi/Esse/Loro arrestassero
  | 
|  Perfect |  | 
I (whether) stemed   You (whether) stemed   He/She/It (whether) stemed   We (whether) stemed   You (whether) stemed   They (whether) stemed  
  |  Io abbia arrestato Tu abbia arrestato Egli/Ella/Esso abbia arrestato Noi abbiamo arrestato Voi abbiate arrestato Essi/Esse/Loro abbiano arrestato
  | 
|  Pluperfect |  | 
I (whether) had stemed   You (whether) had stemed   He/She/It (whether) had stemed   We (whether) had stemed   You (whether) had stemed   They (whether) had stemed  
  |  Io avessi arrestato Tu avessi arrestato Egli/Ella/Esso avesse arrestato Noi avessimo arrestato Voi aveste arrestato Essi/Esse/Loro avessero arrestato
  | 
| CONDITIONAL |  | 
|  Present |  | 
I would stem   You would stem   He/She/It would stem   We would stem   You would stem   They would stem  
  |  Io arresterei Tu arresteresti Egli/Ella/Esso arresterebbe Noi arresteremmo Voi arrestereste Essi/Esse/Loro arresterebbero
  | 
|  Perfect |  | 
I would have stemed   You would have stemed   He/She/It would have stemed   We would have stemed   You would have stemed   They would have stemed  
  |  Io avrei arrestato Tu avresti arrestato Egli/Ella/Esso avrebbe arrestato Noi avremmo arrestato Voi avreste arrestato Essi/Esse/Loro avrebbero arrestato
  | 
| IMPERATIVE |  | 
|  Present |  | 
let me stem   stem   let him stem   let us stem   stem   let them stem  
  |  Io - Tu arresta  Egli/Ella/Esso arresti Noi arrestiamo Voi arrestate Essi/Esse/Loro arrestino
  | 
| PARTICIPLE |  | 
|  Present |  | 
steming  
  |  arrestante
  | 
|  Perfect |  | 
stemed  
  |  arrestato arrestati...
  | 
| INFINITIVE |  | 
|  Present |  | 
to stem  
  |  arrestare
  | 
|  Perfect |  | 
have stemed  
  |  avere arrestato
  | 
| GERUND |  | 
|  Present |  | 
steming  
  |  arrestando
  | 
|  Perfect |  | 
having stemed  
  |  avendo arrestato
  |