| INDICATIVE |  | 
|  Present |  | 
I buck   You buck   He/She/It bucks   We buck   You buck   They buck  
  |  Yo acucío  Tu acucías El/Ella/Eso acucía Nosotros acuciamos Vosotros acuciáis Ellos/Ellas/Esos acucían
  | 
|  Imperfect |  | 
I was bucking   You were bucking   He/She/It was bucking   We were bucking   You were bucking   They were bucking  
  |  Yo acuciaba Tu acuciabas El/Ella/Eso acuciaba Nosotros acuciabamos Vosotros acuciabais Ellos/Ellas/Esos acuciaban
  | 
|  Perfect |  | 
I bucked   You bucked   He/She/It bucked   We bucked   You bucked   They bucked  
  |  Yo acucié Tu acuciaste El/Ella/Eso acució Nosotros acuciamos Vosotros acuciasteis Ellos/Ellas/Esos acuciaron
  | 
|  Perfect |  | 
I have bucked   You have bucked   He/She/It has bucked   We have bucked   You have bucked   They have bucked  
  |  Yo he acuciado Tu has acuciado El/Ella/Eso ha acuciado Nosotros hemos acuciado Vosotros habéis acuciado Ellos/Ellas/Esos han acuciado
  | 
|  PlusPerfect |  | 
I had bucked   You had bucked   He/She/It had bucked   We had bucked   You had bucked   They had bucked  
  |  Yo había acuciado Tu habías acuciado El/Ella/Eso había acuciado Nosotros habíamos acuciado Vosotros habíais acuciado Ellos/Ellas/Esos habían acuciado
  | 
|  Plusperfect |  | 
I had bucked   You had bucked   He/She/It had bucked   We had bucked   You had bucked   They had bucked  
  |  Yo hube acuciado Tu hubiste acuciado El/Ella/Eso hubo acuciado Nosotros hubimos acuciado Vosotros hubisteis acuciado Ellos/Ellas/Esos hubieron acuciado
  | 
|  Future |  | 
I will buck   You will buck   He/She/It will buck   We will buck   You will buck   They will buck  
  |  Yo acuciaré Tu acuciaras El/Ella/Eso acuciará Nosotros acuciaremos Vosotros acuciareis Ellos/Ellas/Esos acuciarán
  | 
|  Future perfect |  | 
I will have bucked   You will have bucked   He/She/It will have bucked   We will have bucked   You will have bucked   They will have bucked  
  |  Yo habré acuciado Tu habrás acuciado El/Ella/Eso habrá acuciado Nosotros habremos acuciado Vosotros habréis acuciado Ellos/Ellas/Esos habrán acuciado
  | 
| SUBJUNTIVE |  | 
|  Present |  | 
I (that )may buck   You (that )may buck   He/She/It (that )may buck   We (that )may buck   You (that )may buck   They (that )may buck  
  |  Yo acucíe Tu acucíes El/Ella/Eso acucíe Nosotros acuciemos Vosotros acuciéis Ellos/Ellas/Esos acucíen
  | 
|  Imperfect |  | 
I (that )might buck   You (that )might buck   He/She/It (that )might buck   We (that )might buck   You (that )might buck   They (that )might buck  
  |  Yo acuciara Tu acuciaras El/Ella/Eso acuciara Nosotros acuciáramos Vosotros acuciarais Ellos/Ellas/Esos acuciaran
  | 
|  Perfect |  | 
I (whether) bucked   You (whether) bucked   He/She/It (whether) bucked   We (whether) bucked   You (whether) bucked   They (whether) bucked  
  |  Yo haya acuciado Tu hayas acuciado El/Ella/Eso haya acuciado Nosotros hayamos acuciado Vosotros hayáis acuciado Ellos/Ellas/Esos hayan acuciado
  | 
|  Pluperfect |  | 
I (whether) had bucked   You (whether) had bucked   He/She/It (whether) had bucked   We (whether) had bucked   You (whether) had bucked   They (whether) had bucked  
  |  Yo hubiera acuciado Tu hubieras acuciado El/Ella/Eso hubiera acuciado Nosotros hubiéramos acuciado Vosotros hubierais acuciado Ellos/Ellas/Esos hubieran acuciado
  | 
| CONDITIONAL |  | 
|  Present |  | 
I would buck   You would buck   He/She/It would buck   We would buck   You would buck   They would buck  
  |  Yo acuciaría Tu acuciarías El/Ella/Eso acuciaría Nosotros acuciaríamos Vosotros acuciaríais Ellos/Ellas/Esos acuciarían
  | 
|  Perfect |  | 
I would have bucked   You would have bucked   He/She/It would have bucked   We would have bucked   You would have bucked   They would have bucked  
  |  Yo habría acuciado Tu habrías acuciado El/Ella/Eso habría acuciado Nosotros habríamos acuciado Vosotros habríais acuciado Ellos/Ellas/Esos habrían acuciado
  | 
| IMPERATIVE |  | 
|  Present |  | 
let me buck   buck   let him buck   let us buck   buck   let them buck  
  |  Yo - Tu acucia  El/Ella/Eso acucie Nosotros acuciemos Vosotros acuciad Ellos/Ellas/Esos acucien
  | 
| PARTICIPLE |  | 
|  Present |  | 
bucking  
  |  que acucía
  | 
|  Perfect |  | 
bucked  
  |  acuciado
  | 
| INFINITIVE |  | 
|  Present |  | 
to buck  
  |  acuciar
  | 
|  Perfect |  | 
have bucked  
  |  haber acuciado
  | 
| GERUND |  | 
|  Present |  | 
bucking  
  |  acuciando
  | 
|  Perfect |  | 
having bucked  
  |  habiendo acuciado
  |