I can blockade you can blockade she can blockade we can blockade you can blockade they can blockade
V-ing form
I can be blockading you can be blockading she can be blockading we can be blockading you can be blockading they can be blockading
Perfect
I can have blockaded you can have blockaded she can have blockaded we can have blockaded you can have blockaded they can have blockaded
V-ing perfect
I can have been blockading you can have been blockading she can have been blockading we can have been blockading you can have been blockading they can have been blockading
Negation
Simple form
I can't blockade you can't blockade she can't blockade we can't blockade you can't blockade they can't blockade
V-ing form
I can't be blockading you can't be blockading she can't be blockading we can't be blockading you can't be blockading they can't be blockading
Perfect
I can't have blockaded you can't have blockaded she can't have blockaded we can't have blockaded you can't have blockaded they can't have blockaded
V-ing perfect
I can't have been blockading you can't have been blockading she can't have been blockading we can't have been blockading you can't have been blockading they can't have been blockading
Interrogative form
Simple form
can I blockade? can you blockade? can she blockade? can we blockade? can you blockade? can they blockade?
V-ing form
can I be blockading? can you be blockading? can she be blockading? can we be blockading? can you be blockading? can they be blockading?
Perfect
can I have blockaded? can you have blockaded? can she have blockaded? can we have blockaded? can you have blockaded? can they have blockaded?
V-ing perfect
can I have been blockading? can you have been blockading? can she have been blockading? can we have been blockading? can you have been blockading? can they have been blockading?
Interro-negative form
Simple form
can't I blockade? can't you blockade? can't she blockade? can't we blockade? can't you blockade? can't they blockade?
V-ing form
can't I be blockading? can't you be blockading? can't she be blockading? can't we be blockading? can't you be blockading? can't they be blockading?
Perfect
can't I have blockaded? can't you have blockaded? can't she have blockaded? can't we have blockaded? can't you have blockaded? can't they have blockaded?
V-ing perfect
can't I have been blockading? can't you have been blockading? can't she have been blockading? can't we have been blockading? can't you have been blockading? can't they have been blockading?