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 can't second you can't second he can't second we can't second you can't second they can't second	I can't be seconding you can't be seconding he can't be seconding we can't be seconding you can't be seconding they can't be seconding
Perfect	V-ing perfect
I can't have seconded you can't have seconded he can't have seconded we can't have seconded you can't have seconded they can't have seconded	I can't have been seconding you can't have been seconding he can't have been seconding we can't have been seconding you can't have been seconding they can't 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't I second? can't you second? can't he second? can't we second? can't you second? can't they second?	can't I be seconding? can't you be seconding? can't he be seconding? can't we be seconding? can't you be seconding? can't they be seconding?
Perfect	V-ing perfect
can't I have seconded? can't you have seconded? can't he have seconded? can't we have seconded? can't you have seconded? can't they have seconded?	can't I have been seconding? can't you have been seconding? can't he have been seconding? can't we have been seconding? can't you have been seconding? can't they have been seconding?