English verb conjugation
COULD ASSESS

Regular verb: assess - assessed - assessed

Affirmation

Simple form	V-ing form
I could assess you could assess she could assess we could assess you could assess they could assess	I could be assessing you could be assessing she could be assessing we could be assessing you could be assessing they could be assessing
Perfect	V-ing perfect
I could have assessed you could have assessed she could have assessed we could have assessed you could have assessed they could have assessed	I could have been assessing you could have been assessing she could have been assessing we could have been assessing you could have been assessing they could have been assessing

Negation

Simple form	V-ing form
I couldn't assess you couldn't assess she couldn't assess we couldn't assess you couldn't assess they couldn't assess	I couldn't be assessing you couldn't be assessing she couldn't be assessing we couldn't be assessing you couldn't be assessing they couldn't be assessing
Perfect	V-ing perfect
I couldn't have assessed you couldn't have assessed she couldn't have assessed we couldn't have assessed you couldn't have assessed they couldn't have assessed	I couldn't have been assessing you couldn't have been assessing she couldn't have been assessing we couldn't have been assessing you couldn't have been assessing they couldn't have been assessing

Interrogative form

Simple form	V-ing form
could I assess? could you assess? could she assess? could we assess? could you assess? could they assess?	could I be assessing? could you be assessing? could she be assessing? could we be assessing? could you be assessing? could they be assessing?
Perfect	V-ing perfect
could I have assessed? could you have assessed? could she have assessed? could we have assessed? could you have assessed? could they have assessed?	could I have been assessing? could you have been assessing? could she have been assessing? could we have been assessing? could you have been assessing? could they have been assessing?

Interro-negative form

Simple form	V-ing form
couldn't I assess? couldn't you assess? couldn't she assess? couldn't we assess? couldn't you assess? couldn't they assess?	couldn't I be assessing? couldn't you be assessing? couldn't she be assessing? couldn't we be assessing? couldn't you be assessing? couldn't they be assessing?
Perfect	V-ing perfect
couldn't I have assessed? couldn't you have assessed? couldn't she have assessed? couldn't we have assessed? couldn't you have assessed? couldn't they have assessed?	couldn't I have been assessing? couldn't you have been assessing? couldn't she have been assessing? couldn't we have been assessing? couldn't you have been assessing? couldn't they have been assessing?