could implant
Regular verb: implant - implanted- implanted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could implant
you could implant
she could implant
we could implant
you could implant
they could implant 	I could be implanting
you could be implanting
she could be implanting
we could be implanting
you could be implanting
they could be implanting	I could have implanted
you could have implanted
she could have implanted
we could have implanted
you could have implanted
they could have implanted	I could have been implanting
you could have been implanting
she could have been implanting
we could have been implanting
you could have been implanting
they could have been implanting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't implant
you couldn't implant
she couldn't implant
we couldn't implant
you couldn't implant
they couldn't implant 	I couldn't be implanting
you couldn't be implanting
she couldn't be implanting
we couldn't be implanting
you couldn't be implanting
they couldn't be implanting	I couldn't have implanted
you couldn't have implanted
she couldn't have implanted
we couldn't have implanted
you couldn't have implanted
they couldn't have implanted	I couldn't have been implanting
you couldn't have been implanting
she couldn't have been implanting
we couldn't have been implanting
you couldn't have been implanting
they couldn't have been implanting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I implant?
could you implant?
could she implant?
could we implant?
could you implant?
could they implant? 	could I be implanting?
could you be implanting?
could she be implanting?
could we be implanting?
could you be implanting?
could they be implanting? 	could I have implanted?
could you have implanted?
could she have implanted?
could we have implanted?
could you have implanted?
could they have implanted? 	could I have been implanting?
could you have been implanting?
could she have been implanting?
could we have been implanting?
could you have been implanting?
could they have been implanting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I implant?
couldn't you implant?
couldn't she implant?
couldn't we implant?
couldn't you implant?
couldn't they implant? 	couldn't I be implanting?
couldn't you be implanting?
couldn't she be implanting?
couldn't we be implanting?
couldn't you be implanting?
couldn't they be implanting? 	couldn't I have implanted?
couldn't you have implanted?
couldn't she have implanted?
couldn't we have implanted?
couldn't you have implanted?
couldn't they have implanted? 	couldn't I have been implanting?
couldn't you have been implanting?
couldn't she have been implanting?
couldn't we have been implanting?
couldn't you have been implanting?
couldn't they have been implanting?