English verb conjugation
CAN YEARN

Regular verb: yearn - yearned - yearned

Affirmation

Simple form	V-ing form
I can yearn you can yearn he can yearn we can yearn you can yearn they can yearn	I can be yearning you can be yearning he can be yearning we can be yearning you can be yearning they can be yearning
Perfect	V-ing perfect
I can have yearned you can have yearned he can have yearned we can have yearned you can have yearned they can have yearned	I can have been yearning you can have been yearning he can have been yearning we can have been yearning you can have been yearning they can have been yearning

Negation

Simple form	V-ing form
I cannot yearn you cannot yearn he cannot yearn we cannot yearn you cannot yearn they cannot yearn	I cannot be yearning you cannot be yearning he cannot be yearning we cannot be yearning you cannot be yearning they cannot be yearning
Perfect	V-ing perfect
I cannot have yearned you cannot have yearned he cannot have yearned we cannot have yearned you cannot have yearned they cannot have yearned	I cannot have been yearning you cannot have been yearning he cannot have been yearning we cannot have been yearning you cannot have been yearning they cannot have been yearning

Interrogative form

Simple form	V-ing form
can I yearn? can you yearn? can he yearn? can we yearn? can you yearn? can they yearn?	can I be yearning? can you be yearning? can he be yearning? can we be yearning? can you be yearning? can they be yearning?
Perfect	V-ing perfect
can I have yearned? can you have yearned? can he have yearned? can we have yearned? can you have yearned? can they have yearned?	can I have been yearning? can you have been yearning? can he have been yearning? can we have been yearning? can you have been yearning? can they have been yearning?

Interro-negative form

Simple form	V-ing form
can I not yearn? can you not yearn? can he not yearn? can we not yearn? can you not yearn? can they not yearn?	can I not be yearning? can you not be yearning? can he not be yearning? can we not be yearning? can you not be yearning? can they not be yearning?
Perfect	V-ing perfect
can I not have yearned? can you not have yearned? can he not have yearned? can we not have yearned? can you not have yearned? can they not have yearned?	can I not have been yearning? can you not have been yearning? can he not have been yearning? can we not have been yearning? can you not have been yearning? can they not have been yearning?