I can conclude you can conclude he can conclude we can conclude you can conclude they can conclude
V-ing form
I can be concluding you can be concluding he can be concluding we can be concluding you can be concluding they can be concluding
Perfect
I can have concluded you can have concluded he can have concluded we can have concluded you can have concluded they can have concluded
V-ing perfect
I can have been concluding you can have been concluding he can have been concluding we can have been concluding you can have been concluding they can have been concluding
Negation
Simple form
I can't conclude you can't conclude he can't conclude we can't conclude you can't conclude they can't conclude
V-ing form
I can't be concluding you can't be concluding he can't be concluding we can't be concluding you can't be concluding they can't be concluding
Perfect
I can't have concluded you can't have concluded he can't have concluded we can't have concluded you can't have concluded they can't have concluded
V-ing perfect
I can't have been concluding you can't have been concluding he can't have been concluding we can't have been concluding you can't have been concluding they can't have been concluding
Interrogative form
Simple form
can I conclude? can you conclude? can he conclude? can we conclude? can you conclude? can they conclude?
V-ing form
can I be concluding? can you be concluding? can he be concluding? can we be concluding? can you be concluding? can they be concluding?
Perfect
can I have concluded? can you have concluded? can he have concluded? can we have concluded? can you have concluded? can they have concluded?
V-ing perfect
can I have been concluding? can you have been concluding? can he have been concluding? can we have been concluding? can you have been concluding? can they have been concluding?
Interro-negative form
Simple form
can't I conclude? can't you conclude? can't he conclude? can't we conclude? can't you conclude? can't they conclude?
V-ing form
can't I be concluding? can't you be concluding? can't he be concluding? can't we be concluding? can't you be concluding? can't they be concluding?
Perfect
can't I have concluded? can't you have concluded? can't he have concluded? can't we have concluded? can't you have concluded? can't they have concluded?
V-ing perfect
can't I have been concluding? can't you have been concluding? can't he have been concluding? can't we have been concluding? can't you have been concluding? can't they have been concluding?