English verb conjugation
CAN STAG

Regular verb: stag - staged - staged

Affirmation

Simple form	V-ing form
I can stag you can stag he can stag we can stag you can stag they can stag	I can be staging you can be staging he can be staging we can be staging you can be staging they can be staging
Perfect	V-ing perfect
I can have staged you can have staged he can have staged we can have staged you can have staged they can have staged	I can have been staging you can have been staging he can have been staging we can have been staging you can have been staging they can have been staging

Negation

Simple form	V-ing form
I cannot stag you cannot stag he cannot stag we cannot stag you cannot stag they cannot stag	I cannot be staging you cannot be staging he cannot be staging we cannot be staging you cannot be staging they cannot be staging
Perfect	V-ing perfect
I cannot have staged you cannot have staged he cannot have staged we cannot have staged you cannot have staged they cannot have staged	I cannot have been staging you cannot have been staging he cannot have been staging we cannot have been staging you cannot have been staging they cannot have been staging

Interrogative form

Simple form	V-ing form
can I stag? can you stag? can he stag? can we stag? can you stag? can they stag?	can I be staging? can you be staging? can he be staging? can we be staging? can you be staging? can they be staging?
Perfect	V-ing perfect
can I have staged? can you have staged? can he have staged? can we have staged? can you have staged? can they have staged?	can I have been staging? can you have been staging? can he have been staging? can we have been staging? can you have been staging? can they have been staging?

Interro-negative form

Simple form	V-ing form
can I not stag? can you not stag? can he not stag? can we not stag? can you not stag? can they not stag?	can I not be staging? can you not be staging? can he not be staging? can we not be staging? can you not be staging? can they not be staging?
Perfect	V-ing perfect
can I not have staged? can you not have staged? can he not have staged? can we not have staged? can you not have staged? can they not have staged?	can I not have been staging? can you not have been staging? can he not have been staging? can we not have been staging? can you not have been staging? can they not have been staging?