I can enrich you can enrich he can enrich we can enrich you can enrich they can enrich
V-ing form
I can be enriching you can be enriching he can be enriching we can be enriching you can be enriching they can be enriching
Perfect
I can have enriched you can have enriched he can have enriched we can have enriched you can have enriched they can have enriched
V-ing perfect
I can have been enriching you can have been enriching he can have been enriching we can have been enriching you can have been enriching they can have been enriching
Negation
Simple form
I cannot enrich you cannot enrich he cannot enrich we cannot enrich you cannot enrich they cannot enrich
V-ing form
I cannot be enriching you cannot be enriching he cannot be enriching we cannot be enriching you cannot be enriching they cannot be enriching
Perfect
I cannot have enriched you cannot have enriched he cannot have enriched we cannot have enriched you cannot have enriched they cannot have enriched
V-ing perfect
I cannot have been enriching you cannot have been enriching he cannot have been enriching we cannot have been enriching you cannot have been enriching they cannot have been enriching
Interrogative form
Simple form
can I enrich? can you enrich? can he enrich? can we enrich? can you enrich? can they enrich?
V-ing form
can I be enriching? can you be enriching? can he be enriching? can we be enriching? can you be enriching? can they be enriching?
Perfect
can I have enriched? can you have enriched? can he have enriched? can we have enriched? can you have enriched? can they have enriched?
V-ing perfect
can I have been enriching? can you have been enriching? can he have been enriching? can we have been enriching? can you have been enriching? can they have been enriching?
Interro-negative form
Simple form
can I not enrich? can you not enrich? can he not enrich? can we not enrich? can you not enrich? can they not enrich?
V-ing form
can I not be enriching? can you not be enriching? can he not be enriching? can we not be enriching? can you not be enriching? can they not be enriching?
Perfect
can I not have enriched? can you not have enriched? can he not have enriched? can we not have enriched? can you not have enriched? can they not have enriched?
V-ing perfect
can I not have been enriching? can you not have been enriching? can he not have been enriching? can we not have been enriching? can you not have been enriching? can they not have been enriching?