| INDICATIVE |  | 
|  Present |  | 
I sicken   You sicken   He/She/It sickens   We sicken   You sicken   They sicken  
  |  Yo enfermo  Tu enfermas El/Ella/Eso enferma Nosotros enfermamos Vosotros enfermáis Ellos/Ellas/Esos enferman
  | 
|  Imperfect |  | 
I was sickening   You were sickening   He/She/It was sickening   We were sickening   You were sickening   They were sickening  
  |  Yo enfermaba Tu enfermabas El/Ella/Eso enfermaba Nosotros enfermabamos Vosotros enfermabais Ellos/Ellas/Esos enfermaban
  | 
|  Perfect |  | 
I sickened   You sickened   He/She/It sickened   We sickened   You sickened   They sickened  
  |  Yo enfermé Tu enfermaste El/Ella/Eso enfermó Nosotros enfermamos Vosotros enfermasteis Ellos/Ellas/Esos enfermaron
  | 
|  Perfect |  | 
I have sickened   You have sickened   He/She/It has sickened   We have sickened   You have sickened   They have sickened  
  |  Yo he enfermado Tu has enfermado El/Ella/Eso ha enfermado Nosotros hemos enfermado Vosotros habéis enfermado Ellos/Ellas/Esos han enfermado
  | 
|  PlusPerfect |  | 
I had sickened   You had sickened   He/She/It had sickened   We had sickened   You had sickened   They had sickened  
  |  Yo había enfermado Tu habías enfermado El/Ella/Eso había enfermado Nosotros habíamos enfermado Vosotros habíais enfermado Ellos/Ellas/Esos habían enfermado
  | 
|  Plusperfect |  | 
I had sickened   You had sickened   He/She/It had sickened   We had sickened   You had sickened   They had sickened  
  |  Yo hube enfermado Tu hubiste enfermado El/Ella/Eso hubo enfermado Nosotros hubimos enfermado Vosotros hubisteis enfermado Ellos/Ellas/Esos hubieron enfermado
  | 
|  Future |  | 
I will sicken   You will sicken   He/She/It will sicken   We will sicken   You will sicken   They will sicken  
  |  Yo enfermaré Tu enfermaras El/Ella/Eso enfermará Nosotros enfermaremos Vosotros enfermareis Ellos/Ellas/Esos enfermarán
  | 
|  Future perfect |  | 
I will have sickened   You will have sickened   He/She/It will have sickened   We will have sickened   You will have sickened   They will have sickened  
  |  Yo habré enfermado Tu habrás enfermado El/Ella/Eso habrá enfermado Nosotros habremos enfermado Vosotros habréis enfermado Ellos/Ellas/Esos habrán enfermado
  | 
| SUBJUNTIVE |  | 
|  Present |  | 
I (that )may sicken   You (that )may sicken   He/She/It (that )may sicken   We (that )may sicken   You (that )may sicken   They (that )may sicken  
  |  Yo enferme Tu enfermes El/Ella/Eso enferme Nosotros enfermemos Vosotros enferméis Ellos/Ellas/Esos enfermen
  | 
|  Imperfect |  | 
I (that )might sicken   You (that )might sicken   He/She/It (that )might sicken   We (that )might sicken   You (that )might sicken   They (that )might sicken  
  |  Yo enfermara Tu enfermaras El/Ella/Eso enfermara Nosotros enfermáramos Vosotros enfermarais Ellos/Ellas/Esos enfermaran
  | 
|  Perfect |  | 
I (whether) sickened   You (whether) sickened   He/She/It (whether) sickened   We (whether) sickened   You (whether) sickened   They (whether) sickened  
  |  Yo haya enfermado Tu hayas enfermado El/Ella/Eso haya enfermado Nosotros hayamos enfermado Vosotros hayáis enfermado Ellos/Ellas/Esos hayan enfermado
  | 
|  Pluperfect |  | 
I (whether) had sickened   You (whether) had sickened   He/She/It (whether) had sickened   We (whether) had sickened   You (whether) had sickened   They (whether) had sickened  
  |  Yo hubiera enfermado Tu hubieras enfermado El/Ella/Eso hubiera enfermado Nosotros hubiéramos enfermado Vosotros hubierais enfermado Ellos/Ellas/Esos hubieran enfermado
  | 
| CONDITIONAL |  | 
|  Present |  | 
I would sicken   You would sicken   He/She/It would sicken   We would sicken   You would sicken   They would sicken  
  |  Yo enfermaría Tu enfermarías El/Ella/Eso enfermaría Nosotros enfermaríamos Vosotros enfermaríais Ellos/Ellas/Esos enfermarían
  | 
|  Perfect |  | 
I would have sickened   You would have sickened   He/She/It would have sickened   We would have sickened   You would have sickened   They would have sickened  
  |  Yo habría enfermado Tu habrías enfermado El/Ella/Eso habría enfermado Nosotros habríamos enfermado Vosotros habríais enfermado Ellos/Ellas/Esos habrían enfermado
  | 
| IMPERATIVE |  | 
|  Present |  | 
let me sicken   sicken   let him sicken   let us sicken   sicken   let them sicken  
  |  Yo - Tu enferma  El/Ella/Eso enferme Nosotros enfermemos Vosotros enfermad Ellos/Ellas/Esos enfermen
  | 
| PARTICIPLE |  | 
|  Present |  | 
sickening  
  |  que enferma
  | 
|  Perfect |  | 
sickened  
  |  enfermado
  | 
| INFINITIVE |  | 
|  Present |  | 
to sicken  
  |  enfermar
  | 
|  Perfect |  | 
have sickened  
  |  haber enfermado
  | 
| GERUND |  | 
|  Present |  | 
sickening  
  |  enfermando
  | 
|  Perfect |  | 
having sickened  
  |  habiendo enfermado
  |