In units 1-4, we reviewed most of the verb forms and tenses commonly used in Spanish; this is simply a summary of all of those forms. 
      1. Forms of the INDICATIVE 
      PRESENT       
      
        
          | Present Indicative: Regular -AR verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | yo descanso  | 
          nosotros descansamos  | 
         
        
          | tú descansas  | 
          (vosotros descansáis) | 
         
        
          | él/ella/Ud. descansa  | 
          ellos/ellas/Uds. descansan  | 
         
             
      
        
          | Present Indicative: Regular -ER verbs  | 
         
        
          | COMPRENDER: to understand  | 
         
        
          | yo comprendo  | 
          nosotros comprendemos  | 
         
        
          | tú comprendes  | 
          (vosotros comprendéis) | 
         
        
          | él/ella/Ud. comprende  | 
          ellos/ellas/Uds. comprenden  | 
         
       
      
        
          | Present Indicative: Regular -IR verbs  | 
         
        
          | AÑADIR: to add  | 
         
        
          | yo añado  | 
          nosotros añadimos  | 
         
        
          | tú añades  | 
          (vosotros añadís) | 
         
        
          | él/ella/Ud. añade  | 
          ellos/ellas/Uds. añaden  | 
         
       
      PRETERITE 
      
        
          | Preterite: Regular -AR verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | yo descansé  | 
          nosotros descansamos  | 
         
        
          | tú descansaste  | 
          (vosotros descansasteis) | 
         
        
          | él/ella/Ud. descansó  | 
          ellos/ellas/Uds. descansaron  | 
         
       
      
        
          | Preterite: Regular -ER and -IR verbs  | 
         
        
          | COMPRENDER: to understand  | 
         
        
          | yo comprendí  | 
          nosotros comprendimos  | 
         
        
          | tú comprendiste  | 
          (vosotros comprendisteis) | 
         
        
          | él/ella/Ud. comprendió  | 
          ellos/ellas/Uds. comprendieron  | 
         
             
      IMPERFECT 
      
        
          | Imperfect: Regular -AR verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | yo descansaba  | 
          nosotros descansábamos  | 
         
        
          | tú descansabas  | 
          (vosotros descansabais) | 
         
        
          | él/ella/Ud. descansaba  | 
          ellos/ellas/Uds. descansaban  | 
         
       
      
        
          | Imperfect: Regular -ER and -IR verbs  | 
         
        
          | COMPRENDER: to understand  | 
         
        
          | yo comprendía  | 
          nosotros comprendíamos  | 
         
        
          | tú comprendía  | 
          (vosotros comprendíais) | 
         
        
          | él/ella/Ud. comprendía  | 
          ellos/ellas/Uds. comprendían  | 
         
       
      FUTURE 
      
        
          | Future: Regular verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | yo descansaré  | 
          nosotros descansaremos  | 
         
        
          | tú descansarás  | 
          (vosotros descansareis) | 
         
        
          | él/ella/Ud. descansará  | 
          ellos/ellas/Uds. descansarán  | 
         
       
      CONDITIONAL 
      
        
          | Conditional: Regular verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | yo descansaría  | 
          nosotros descansaríamos  | 
         
        
          | tú descansarías  | 
          (vosotros descansaríais) | 
         
        
          | él/ella/Ud. descansaría  | 
          ellos/ellas/Uds. descansarían  | 
         
             
      2. Forms of the SUBJUNCTIVE  
      PRESENT SUBJUNCTIVE  
      
        
          | Present Subjunctive: 
            Regular -AR verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          | ...que yo descanse  | 
          ...que nosotros descansemos  | 
         
        
          | ...que tú descanses  | 
          (que vosotros descanséis) | 
         
        
          | ...que él/ella/Ud. descanse  | 
          ...que ellos/ellas/Uds. descansen  | 
         
       
       
      
        
          | Present Subjunctive: 
            Regular -ER and -IR verbs  | 
         
        
          | COMPRENDER: to understand  | 
         
        
          | ...que yo comprenda  | 
          ...que nosotros comprendamos  | 
         
        
          | ...que tú comprendas  | 
          (...que vosotros comprendáis) | 
         
        
          | ...que él/ella/Ud. comprenda  | 
          ...que ellos/ellas/Uds. comprendan  | 
         
             
      IMPERFECT SUBJUNCTIVE  
      
        
          | Imperfect Subjunctive: 
            Regular -AR verbs  | 
         
        
          | DESCANSAR: to rest  | 
         
        
          |  ...que yo descansara  | 
          ...que nosotros descansáramos  | 
         
        
          | ...que tú descansaras  | 
          (que vosotros descansarais) | 
         
        
          | ...que él/ella/Ud. descansara  | 
          ...que ellos/ellas/Uds. descansaran  | 
         
       
       
      
        
          | Imperfect Subjunctive: 
            Regular -ER and -IR verbs  | 
         
        
          | VIVIR: to understand  | 
         
        
          | ...que yo viviera   | 
          ...que nosotros viviéramos   | 
         
        
          | ...que tú vivieras   | 
          (...que vosotros vivierais) | 
         
        
          | ...que él/ella/Ud. viviera  | 
          ...que ellos/ellas/Uds. vivieran  | 
         
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