I can cross-check you can cross-check she can cross-check we can cross-check you can cross-check they can cross-check
V-ing form
I can be cross-checking you can be cross-checking she can be cross-checking we can be cross-checking you can be cross-checking they can be cross-checking
Perfect
I can have cross-checked you can have cross-checked she can have cross-checked we can have cross-checked you can have cross-checked they can have cross-checked
V-ing perfect
I can have been cross-checking you can have been cross-checking she can have been cross-checking we can have been cross-checking you can have been cross-checking they can have been cross-checking
Negation
Simple form
I can't cross-check you can't cross-check she can't cross-check we can't cross-check you can't cross-check they can't cross-check
V-ing form
I can't be cross-checking you can't be cross-checking she can't be cross-checking we can't be cross-checking you can't be cross-checking they can't be cross-checking
Perfect
I can't have cross-checked you can't have cross-checked she can't have cross-checked we can't have cross-checked you can't have cross-checked they can't have cross-checked
V-ing perfect
I can't have been cross-checking you can't have been cross-checking she can't have been cross-checking we can't have been cross-checking you can't have been cross-checking they can't have been cross-checking
Interrogative form
Simple form
can I cross-check? can you cross-check? can she cross-check? can we cross-check? can you cross-check? can they cross-check?
V-ing form
can I be cross-checking? can you be cross-checking? can she be cross-checking? can we be cross-checking? can you be cross-checking? can they be cross-checking?
Perfect
can I have cross-checked? can you have cross-checked? can she have cross-checked? can we have cross-checked? can you have cross-checked? can they have cross-checked?
V-ing perfect
can I have been cross-checking? can you have been cross-checking? can she have been cross-checking? can we have been cross-checking? can you have been cross-checking? can they have been cross-checking?
Interro-negative form
Simple form
can't I cross-check? can't you cross-check? can't she cross-check? can't we cross-check? can't you cross-check? can't they cross-check?
V-ing form
can't I be cross-checking? can't you be cross-checking? can't she be cross-checking? can't we be cross-checking? can't you be cross-checking? can't they be cross-checking?
Perfect
can't I have cross-checked? can't you have cross-checked? can't she have cross-checked? can't we have cross-checked? can't you have cross-checked? can't they have cross-checked?
V-ing perfect
can't I have been cross-checking? can't you have been cross-checking? can't she have been cross-checking? can't we have been cross-checking? can't you have been cross-checking? can't they have been cross-checking?