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