English verb conjugation
CAN PINE

Regular verb: pine - pined - pined

Affirmation

Simple form	V-ing form
I can pine you can pine he can pine we can pine you can pine they can pine	I can be pining you can be pining he can be pining we can be pining you can be pining they can be pining
Perfect	V-ing perfect
I can have pined you can have pined he can have pined we can have pined you can have pined they can have pined	I can have been pining you can have been pining he can have been pining we can have been pining you can have been pining they can have been pining

Negation

Simple form	V-ing form
I can't pine you can't pine he can't pine we can't pine you can't pine they can't pine	I can't be pining you can't be pining he can't be pining we can't be pining you can't be pining they can't be pining
Perfect	V-ing perfect
I can't have pined you can't have pined he can't have pined we can't have pined you can't have pined they can't have pined	I can't have been pining you can't have been pining he can't have been pining we can't have been pining you can't have been pining they can't have been pining

Interrogative form

Simple form	V-ing form
can I pine? can you pine? can he pine? can we pine? can you pine? can they pine?	can I be pining? can you be pining? can he be pining? can we be pining? can you be pining? can they be pining?
Perfect	V-ing perfect
can I have pined? can you have pined? can he have pined? can we have pined? can you have pined? can they have pined?	can I have been pining? can you have been pining? can he have been pining? can we have been pining? can you have been pining? can they have been pining?

Interro-negative form

Simple form	V-ing form
can't I pine? can't you pine? can't he pine? can't we pine? can't you pine? can't they pine?	can't I be pining? can't you be pining? can't he be pining? can't we be pining? can't you be pining? can't they be pining?
Perfect	V-ing perfect
can't I have pined? can't you have pined? can't he have pined? can't we have pined? can't you have pined? can't they have pined?	can't I have been pining? can't you have been pining? can't he have been pining? can't we have been pining? can't you have been pining? can't they have been pining?