English verb conjugation
CAN FETCH

Regular verb: fetch - fetched - fetched

Affirmation

Simple form	V-ing form
I can fetch you can fetch he can fetch we can fetch you can fetch they can fetch	I can be fetching you can be fetching he can be fetching we can be fetching you can be fetching they can be fetching
Perfect	V-ing perfect
I can have fetched you can have fetched he can have fetched we can have fetched you can have fetched they can have fetched	I can have been fetching you can have been fetching he can have been fetching we can have been fetching you can have been fetching they can have been fetching

Negation

Simple form	V-ing form
I can't fetch you can't fetch he can't fetch we can't fetch you can't fetch they can't fetch	I can't be fetching you can't be fetching he can't be fetching we can't be fetching you can't be fetching they can't be fetching
Perfect	V-ing perfect
I can't have fetched you can't have fetched he can't have fetched we can't have fetched you can't have fetched they can't have fetched	I can't have been fetching you can't have been fetching he can't have been fetching we can't have been fetching you can't have been fetching they can't have been fetching

Interrogative form

Simple form	V-ing form
can I fetch? can you fetch? can he fetch? can we fetch? can you fetch? can they fetch?	can I be fetching? can you be fetching? can he be fetching? can we be fetching? can you be fetching? can they be fetching?
Perfect	V-ing perfect
can I have fetched? can you have fetched? can he have fetched? can we have fetched? can you have fetched? can they have fetched?	can I have been fetching? can you have been fetching? can he have been fetching? can we have been fetching? can you have been fetching? can they have been fetching?

Interro-negative form

Simple form	V-ing form
can't I fetch? can't you fetch? can't he fetch? can't we fetch? can't you fetch? can't they fetch?	can't I be fetching? can't you be fetching? can't he be fetching? can't we be fetching? can't you be fetching? can't they be fetching?
Perfect	V-ing perfect
can't I have fetched? can't you have fetched? can't he have fetched? can't we have fetched? can't you have fetched? can't they have fetched?	can't I have been fetching? can't you have been fetching? can't he have been fetching? can't we have been fetching? can't you have been fetching? can't they have been fetching?