I can escape you can escape he can escape we can escape you can escape they can escape
V-ing form
I can be escaping you can be escaping he can be escaping we can be escaping you can be escaping they can be escaping
Perfect
I can have escaped you can have escaped he can have escaped we can have escaped you can have escaped they can have escaped
V-ing perfect
I can have been escaping you can have been escaping he can have been escaping we can have been escaping you can have been escaping they can have been escaping
Negation
Simple form
I cannot escape you cannot escape he cannot escape we cannot escape you cannot escape they cannot escape
V-ing form
I cannot be escaping you cannot be escaping he cannot be escaping we cannot be escaping you cannot be escaping they cannot be escaping
Perfect
I cannot have escaped you cannot have escaped he cannot have escaped we cannot have escaped you cannot have escaped they cannot have escaped
V-ing perfect
I cannot have been escaping you cannot have been escaping he cannot have been escaping we cannot have been escaping you cannot have been escaping they cannot have been escaping
Interrogative form
Simple form
can I escape? can you escape? can he escape? can we escape? can you escape? can they escape?
V-ing form
can I be escaping? can you be escaping? can he be escaping? can we be escaping? can you be escaping? can they be escaping?
Perfect
can I have escaped? can you have escaped? can he have escaped? can we have escaped? can you have escaped? can they have escaped?
V-ing perfect
can I have been escaping? can you have been escaping? can he have been escaping? can we have been escaping? can you have been escaping? can they have been escaping?
Interro-negative form
Simple form
can I not escape? can you not escape? can he not escape? can we not escape? can you not escape? can they not escape?
V-ing form
can I not be escaping? can you not be escaping? can he not be escaping? can we not be escaping? can you not be escaping? can they not be escaping?
Perfect
can I not have escaped? can you not have escaped? can he not have escaped? can we not have escaped? can you not have escaped? can they not have escaped?
V-ing perfect
can I not have been escaping? can you not have been escaping? can he not have been escaping? can we not have been escaping? can you not have been escaping? can they not have been escaping?