I could perch you could perch he could perch we could perch you could perch they could perch
Forma con V-ing
I could be perching you could be perching he could be perching we could be perching you could be perching they could be perching
Perfetto
I could have perched you could have perched he could have perched we could have perched you could have perched they could have perched
Perfetto con V-ing
I could have been perching you could have been perching he could have been perching we could have been perching you could have been perching they could have been perching
Negazione
Forma semplice
I could not perch you could not perch he could not perch we could not perch you could not perch they could not perch
Forma con V-ing
I could not be perching you could not be perching he could not be perching we could not be perching you could not be perching they could not be perching
Perfetto
I could not have perched you could not have perched he could not have perched we could not have perched you could not have perched they could not have perched
Perfetto con V-ing
I could not have been perching you could not have been perching he could not have been perching we could not have been perching you could not have been perching they could not have been perching
Forma interrogativa
Forma semplice
could I perch? could you perch? could he perch? could we perch? could you perch? could they perch?
Forma con V-ing
could I be perching? could you be perching? could he be perching? could we be perching? could you be perching? could they be perching?
Perfetto
could I have perched? could you have perched? could he have perched? could we have perched? could you have perched? could they have perched?
Perfetto con V-ing
could I have been perching? could you have been perching? could he have been perching? could we have been perching? could you have been perching? could they have been perching?
Forma interro-negativa
Forma semplice
could I not perch? could you not perch? could he not perch? could we not perch? could you not perch? could they not perch?
Forma con V-ing
could I not be perching? could you not be perching? could he not be perching? could we not be perching? could you not be perching? could they not be perching?
Perfetto
could I not have perched? could you not have perched? could he not have perched? could we not have perched? could you not have perched? could they not have perched?
Perfetto con V-ing
could I not have been perching? could you not have been perching? could he not have been perching? could we not have been perching? could you not have been perching? could they not have been perching?