I can rivet you can rivet she can rivet we can rivet you can rivet they can rivet
V-ing form
I can be riveting you can be riveting she can be riveting we can be riveting you can be riveting they can be riveting
Perfect
I can have riveted you can have riveted she can have riveted we can have riveted you can have riveted they can have riveted
V-ing perfect
I can have been riveting you can have been riveting she can have been riveting we can have been riveting you can have been riveting they can have been riveting
Negation
Simple form
I can't rivet you can't rivet she can't rivet we can't rivet you can't rivet they can't rivet
V-ing form
I can't be riveting you can't be riveting she can't be riveting we can't be riveting you can't be riveting they can't be riveting
Perfect
I can't have riveted you can't have riveted she can't have riveted we can't have riveted you can't have riveted they can't have riveted
V-ing perfect
I can't have been riveting you can't have been riveting she can't have been riveting we can't have been riveting you can't have been riveting they can't have been riveting
Interrogative form
Simple form
can I rivet? can you rivet? can she rivet? can we rivet? can you rivet? can they rivet?
V-ing form
can I be riveting? can you be riveting? can she be riveting? can we be riveting? can you be riveting? can they be riveting?
Perfect
can I have riveted? can you have riveted? can she have riveted? can we have riveted? can you have riveted? can they have riveted?
V-ing perfect
can I have been riveting? can you have been riveting? can she have been riveting? can we have been riveting? can you have been riveting? can they have been riveting?
Interro-negative form
Simple form
can't I rivet? can't you rivet? can't she rivet? can't we rivet? can't you rivet? can't they rivet?
V-ing form
can't I be riveting? can't you be riveting? can't she be riveting? can't we be riveting? can't you be riveting? can't they be riveting?
Perfect
can't I have riveted? can't you have riveted? can't she have riveted? can't we have riveted? can't you have riveted? can't they have riveted?
V-ing perfect
can't I have been riveting? can't you have been riveting? can't she have been riveting? can't we have been riveting? can't you have been riveting? can't they have been riveting?