Verbo regular: systematise - systematised - systematised
Afirmación
Forma simple
I could systematise you could systematise he could systematise we could systematise you could systematise they could systematise
Forma con V-ing
I could be systematising you could be systematising he could be systematising we could be systematising you could be systematising they could be systematising
Perfecto
I could have systematised you could have systematised he could have systematised we could have systematised you could have systematised they could have systematised
Perfecto con V-ing
I could have been systematising you could have been systematising he could have been systematising we could have been systematising you could have been systematising they could have been systematising
Negación
Forma simple
I couldn't systematise you couldn't systematise he couldn't systematise we couldn't systematise you couldn't systematise they couldn't systematise
Forma con V-ing
I couldn't be systematising you couldn't be systematising he couldn't be systematising we couldn't be systematising you couldn't be systematising they couldn't be systematising
Perfecto
I couldn't have systematised you couldn't have systematised he couldn't have systematised we couldn't have systematised you couldn't have systematised they couldn't have systematised
Perfecto con V-ing
I couldn't have been systematising you couldn't have been systematising he couldn't have been systematising we couldn't have been systematising you couldn't have been systematising they couldn't have been systematising
Forma interrogativa
Forma simple
could I systematise? could you systematise? could he systematise? could we systematise? could you systematise? could they systematise?
Forma con V-ing
could I be systematising? could you be systematising? could he be systematising? could we be systematising? could you be systematising? could they be systematising?
Perfecto
could I have systematised? could you have systematised? could he have systematised? could we have systematised? could you have systematised? could they have systematised?
Perfecto con V-ing
could I have been systematising? could you have been systematising? could he have been systematising? could we have been systematising? could you have been systematising? could they have been systematising?
Forma interro-negativa
Forma simple
couldn't I systematise? couldn't you systematise? couldn't he systematise? couldn't we systematise? couldn't you systematise? couldn't they systematise?
Forma con V-ing
couldn't I be systematising? couldn't you be systematising? couldn't he be systematising? couldn't we be systematising? couldn't you be systematising? couldn't they be systematising?
Perfecto
couldn't I have systematised? couldn't you have systematised? couldn't he have systematised? couldn't we have systematised? couldn't you have systematised? couldn't they have systematised?
Perfecto con V-ing
couldn't I have been systematising? couldn't you have been systematising? couldn't he have been systematising? couldn't we have been systematising? couldn't you have been systematising? couldn't they have been systematising?