I can corrugate you can corrugate she can corrugate we can corrugate you can corrugate they can corrugate
V-ing form
I can be corrugating you can be corrugating she can be corrugating we can be corrugating you can be corrugating they can be corrugating
Perfect
I can have corrugated you can have corrugated she can have corrugated we can have corrugated you can have corrugated they can have corrugated
V-ing perfect
I can have been corrugating you can have been corrugating she can have been corrugating we can have been corrugating you can have been corrugating they can have been corrugating
Negation
Simple form
I cannot corrugate you cannot corrugate she cannot corrugate we cannot corrugate you cannot corrugate they cannot corrugate
V-ing form
I cannot be corrugating you cannot be corrugating she cannot be corrugating we cannot be corrugating you cannot be corrugating they cannot be corrugating
Perfect
I cannot have corrugated you cannot have corrugated she cannot have corrugated we cannot have corrugated you cannot have corrugated they cannot have corrugated
V-ing perfect
I cannot have been corrugating you cannot have been corrugating she cannot have been corrugating we cannot have been corrugating you cannot have been corrugating they cannot have been corrugating
Interrogative form
Simple form
can I corrugate? can you corrugate? can she corrugate? can we corrugate? can you corrugate? can they corrugate?
V-ing form
can I be corrugating? can you be corrugating? can she be corrugating? can we be corrugating? can you be corrugating? can they be corrugating?
Perfect
can I have corrugated? can you have corrugated? can she have corrugated? can we have corrugated? can you have corrugated? can they have corrugated?
V-ing perfect
can I have been corrugating? can you have been corrugating? can she have been corrugating? can we have been corrugating? can you have been corrugating? can they have been corrugating?
Interro-negative form
Simple form
can I not corrugate? can you not corrugate? can she not corrugate? can we not corrugate? can you not corrugate? can they not corrugate?
V-ing form
can I not be corrugating? can you not be corrugating? can she not be corrugating? can we not be corrugating? can you not be corrugating? can they not be corrugating?
Perfect
can I not have corrugated? can you not have corrugated? can she not have corrugated? can we not have corrugated? can you not have corrugated? can they not have corrugated?
V-ing perfect
can I not have been corrugating? can you not have been corrugating? can she not have been corrugating? can we not have been corrugating? can you not have been corrugating? can they not have been corrugating?