I could legalize you could legalize she could legalize we could legalize you could legalize they could legalize
V-ing form
I could be legalizing you could be legalizing she could be legalizing we could be legalizing you could be legalizing they could be legalizing
Perfect
I could have legalized you could have legalized she could have legalized we could have legalized you could have legalized they could have legalized
V-ing perfect
I could have been legalizing you could have been legalizing she could have been legalizing we could have been legalizing you could have been legalizing they could have been legalizing
Negation
Simple form
I couldn't legalize you couldn't legalize she couldn't legalize we couldn't legalize you couldn't legalize they couldn't legalize
V-ing form
I couldn't be legalizing you couldn't be legalizing she couldn't be legalizing we couldn't be legalizing you couldn't be legalizing they couldn't be legalizing
Perfect
I couldn't have legalized you couldn't have legalized she couldn't have legalized we couldn't have legalized you couldn't have legalized they couldn't have legalized
V-ing perfect
I couldn't have been legalizing you couldn't have been legalizing she couldn't have been legalizing we couldn't have been legalizing you couldn't have been legalizing they couldn't have been legalizing
Interrogative form
Simple form
could I legalize? could you legalize? could she legalize? could we legalize? could you legalize? could they legalize?
V-ing form
could I be legalizing? could you be legalizing? could she be legalizing? could we be legalizing? could you be legalizing? could they be legalizing?
Perfect
could I have legalized? could you have legalized? could she have legalized? could we have legalized? could you have legalized? could they have legalized?
V-ing perfect
could I have been legalizing? could you have been legalizing? could she have been legalizing? could we have been legalizing? could you have been legalizing? could they have been legalizing?
Interro-negative form
Simple form
couldn't I legalize? couldn't you legalize? couldn't she legalize? couldn't we legalize? couldn't you legalize? couldn't they legalize?
V-ing form
couldn't I be legalizing? couldn't you be legalizing? couldn't she be legalizing? couldn't we be legalizing? couldn't you be legalizing? couldn't they be legalizing?
Perfect
couldn't I have legalized? couldn't you have legalized? couldn't she have legalized? couldn't we have legalized? couldn't you have legalized? couldn't they have legalized?
V-ing perfect
couldn't I have been legalizing? couldn't you have been legalizing? couldn't she have been legalizing? couldn't we have been legalizing? couldn't you have been legalizing? couldn't they have been legalizing?