
Verbo regular: designate - designated - designated
Forma simple | Forma con V-ing | 
| I could designate you could designate he could designate we could designate you could designate they could designate  | I could be designating you could be designating he could be designating we could be designating you could be designating they could be designating  | 
Perfecto | Perfecto con V-ing | 
| I could have designated you could have designated he could have designated we could have designated you could have designated they could have designated  | I could have been designating you could have been designating he could have been designating we could have been designating you could have been designating they could have been designating  | 
Forma simple | Forma con V-ing | 
| I couldn't designate you couldn't designate he couldn't designate we couldn't designate you couldn't designate they couldn't designate  | I couldn't be designating you couldn't be designating he couldn't be designating we couldn't be designating you couldn't be designating they couldn't be designating  | 
Perfecto | Perfecto con V-ing | 
| I couldn't have designated you couldn't have designated he couldn't have designated we couldn't have designated you couldn't have designated they couldn't have designated  | I couldn't have been designating you couldn't have been designating he couldn't have been designating we couldn't have been designating you couldn't have been designating they couldn't have been designating  | 
Forma simple | Forma con V-ing | 
| could I designate? could you designate? could he designate? could we designate? could you designate? could they designate?  | could I be designating? could you be designating? could he be designating? could we be designating? could you be designating? could they be designating?  | 
Perfecto | Perfecto con V-ing | 
| could I have designated? could you have designated? could he have designated? could we have designated? could you have designated? could they have designated?  | could I have been designating? could you have been designating? could he have been designating? could we have been designating? could you have been designating? could they have been designating?  | 
Forma simple | Forma con V-ing | 
| couldn't I designate? couldn't you designate? couldn't he designate? couldn't we designate? couldn't you designate? couldn't they designate?  | couldn't I be designating? couldn't you be designating? couldn't he be designating? couldn't we be designating? couldn't you be designating? couldn't they be designating?  | 
Perfecto | Perfecto con V-ing | 
| couldn't I have designated? couldn't you have designated? couldn't he have designated? couldn't we have designated? couldn't you have designated? couldn't they have designated?  | couldn't I have been designating? couldn't you have been designating? couldn't he have been designating? couldn't we have been designating? couldn't you have been designating? couldn't they have been designating?  |