I can issue you can issue he can issue we can issue you can issue they can issue
V-ing form
I can be issuing you can be issuing he can be issuing we can be issuing you can be issuing they can be issuing
Perfect
I can have issued you can have issued he can have issued we can have issued you can have issued they can have issued
V-ing perfect
I can have been issuing you can have been issuing he can have been issuing we can have been issuing you can have been issuing they can have been issuing
Negation
Simple form
I can't issue you can't issue he can't issue we can't issue you can't issue they can't issue
V-ing form
I can't be issuing you can't be issuing he can't be issuing we can't be issuing you can't be issuing they can't be issuing
Perfect
I can't have issued you can't have issued he can't have issued we can't have issued you can't have issued they can't have issued
V-ing perfect
I can't have been issuing you can't have been issuing he can't have been issuing we can't have been issuing you can't have been issuing they can't have been issuing
Interrogative form
Simple form
can I issue? can you issue? can he issue? can we issue? can you issue? can they issue?
V-ing form
can I be issuing? can you be issuing? can he be issuing? can we be issuing? can you be issuing? can they be issuing?
Perfect
can I have issued? can you have issued? can he have issued? can we have issued? can you have issued? can they have issued?
V-ing perfect
can I have been issuing? can you have been issuing? can he have been issuing? can we have been issuing? can you have been issuing? can they have been issuing?
Interro-negative form
Simple form
can't I issue? can't you issue? can't he issue? can't we issue? can't you issue? can't they issue?
V-ing form
can't I be issuing? can't you be issuing? can't he be issuing? can't we be issuing? can't you be issuing? can't they be issuing?
Perfect
can't I have issued? can't you have issued? can't he have issued? can't we have issued? can't you have issued? can't they have issued?
V-ing perfect
can't I have been issuing? can't you have been issuing? can't he have been issuing? can't we have been issuing? can't you have been issuing? can't they have been issuing?