English verb conjugation
CAN SECOND

Regular verb: second - seconded - seconded

Affirmation

Simple form	V-ing form
I can second you can second he can second we can second you can second they can second	I can be seconding you can be seconding he can be seconding we can be seconding you can be seconding they can be seconding
Perfect	V-ing perfect
I can have seconded you can have seconded he can have seconded we can have seconded you can have seconded they can have seconded	I can have been seconding you can have been seconding he can have been seconding we can have been seconding you can have been seconding they can have been seconding

Negation

Simple form	V-ing form
I cannot second you cannot second he cannot second we cannot second you cannot second they cannot second	I cannot be seconding you cannot be seconding he cannot be seconding we cannot be seconding you cannot be seconding they cannot be seconding
Perfect	V-ing perfect
I cannot have seconded you cannot have seconded he cannot have seconded we cannot have seconded you cannot have seconded they cannot have seconded	I cannot have been seconding you cannot have been seconding he cannot have been seconding we cannot have been seconding you cannot have been seconding they cannot have been seconding

Interrogative form

Simple form	V-ing form
can I second? can you second? can he second? can we second? can you second? can they second?	can I be seconding? can you be seconding? can he be seconding? can we be seconding? can you be seconding? can they be seconding?
Perfect	V-ing perfect
can I have seconded? can you have seconded? can he have seconded? can we have seconded? can you have seconded? can they have seconded?	can I have been seconding? can you have been seconding? can he have been seconding? can we have been seconding? can you have been seconding? can they have been seconding?

Interro-negative form

Simple form	V-ing form
can I not second? can you not second? can he not second? can we not second? can you not second? can they not second?	can I not be seconding? can you not be seconding? can he not be seconding? can we not be seconding? can you not be seconding? can they not be seconding?
Perfect	V-ing perfect
can I not have seconded? can you not have seconded? can he not have seconded? can we not have seconded? can you not have seconded? can they not have seconded?	can I not have been seconding? can you not have been seconding? can he not have been seconding? can we not have been seconding? can you not have been seconding? can they not have been seconding?