English verb conjugation
CAN SHIELD

Regular verb: shield - shielded - shielded

Affirmation

Simple form	V-ing form
I can shield you can shield he can shield we can shield you can shield they can shield	I can be shielding you can be shielding he can be shielding we can be shielding you can be shielding they can be shielding
Perfect	V-ing perfect
I can have shielded you can have shielded he can have shielded we can have shielded you can have shielded they can have shielded	I can have been shielding you can have been shielding he can have been shielding we can have been shielding you can have been shielding they can have been shielding

Negation

Simple form	V-ing form
I can't shield you can't shield he can't shield we can't shield you can't shield they can't shield	I can't be shielding you can't be shielding he can't be shielding we can't be shielding you can't be shielding they can't be shielding
Perfect	V-ing perfect
I can't have shielded you can't have shielded he can't have shielded we can't have shielded you can't have shielded they can't have shielded	I can't have been shielding you can't have been shielding he can't have been shielding we can't have been shielding you can't have been shielding they can't have been shielding

Interrogative form

Simple form	V-ing form
can I shield? can you shield? can he shield? can we shield? can you shield? can they shield?	can I be shielding? can you be shielding? can he be shielding? can we be shielding? can you be shielding? can they be shielding?
Perfect	V-ing perfect
can I have shielded? can you have shielded? can he have shielded? can we have shielded? can you have shielded? can they have shielded?	can I have been shielding? can you have been shielding? can he have been shielding? can we have been shielding? can you have been shielding? can they have been shielding?

Interro-negative form

Simple form	V-ing form
can't I shield? can't you shield? can't he shield? can't we shield? can't you shield? can't they shield?	can't I be shielding? can't you be shielding? can't he be shielding? can't we be shielding? can't you be shielding? can't they be shielding?
Perfect	V-ing perfect
can't I have shielded? can't you have shielded? can't he have shielded? can't we have shielded? can't you have shielded? can't they have shielded?	can't I have been shielding? can't you have been shielding? can't he have been shielding? can't we have been shielding? can't you have been shielding? can't they have been shielding?