I can refrigerate you can refrigerate she can refrigerate we can refrigerate you can refrigerate they can refrigerate
V-ing form
I can be refrigerating you can be refrigerating she can be refrigerating we can be refrigerating you can be refrigerating they can be refrigerating
Perfect
I can have refrigerated you can have refrigerated she can have refrigerated we can have refrigerated you can have refrigerated they can have refrigerated
V-ing perfect
I can have been refrigerating you can have been refrigerating she can have been refrigerating we can have been refrigerating you can have been refrigerating they can have been refrigerating
Negation
Simple form
I cannot refrigerate you cannot refrigerate she cannot refrigerate we cannot refrigerate you cannot refrigerate they cannot refrigerate
V-ing form
I cannot be refrigerating you cannot be refrigerating she cannot be refrigerating we cannot be refrigerating you cannot be refrigerating they cannot be refrigerating
Perfect
I cannot have refrigerated you cannot have refrigerated she cannot have refrigerated we cannot have refrigerated you cannot have refrigerated they cannot have refrigerated
V-ing perfect
I cannot have been refrigerating you cannot have been refrigerating she cannot have been refrigerating we cannot have been refrigerating you cannot have been refrigerating they cannot have been refrigerating
Interrogative form
Simple form
can I refrigerate? can you refrigerate? can she refrigerate? can we refrigerate? can you refrigerate? can they refrigerate?
V-ing form
can I be refrigerating? can you be refrigerating? can she be refrigerating? can we be refrigerating? can you be refrigerating? can they be refrigerating?
Perfect
can I have refrigerated? can you have refrigerated? can she have refrigerated? can we have refrigerated? can you have refrigerated? can they have refrigerated?
V-ing perfect
can I have been refrigerating? can you have been refrigerating? can she have been refrigerating? can we have been refrigerating? can you have been refrigerating? can they have been refrigerating?
Interro-negative form
Simple form
can I not refrigerate? can you not refrigerate? can she not refrigerate? can we not refrigerate? can you not refrigerate? can they not refrigerate?
V-ing form
can I not be refrigerating? can you not be refrigerating? can she not be refrigerating? can we not be refrigerating? can you not be refrigerating? can they not be refrigerating?
Perfect
can I not have refrigerated? can you not have refrigerated? can she not have refrigerated? can we not have refrigerated? can you not have refrigerated? can they not have refrigerated?
V-ing perfect
can I not have been refrigerating? can you not have been refrigerating? can she not have been refrigerating? can we not have been refrigerating? can you not have been refrigerating? can they not have been refrigerating?