have stopped using have stopped working to have stopped have stopped have stops have stored have strained have strangled have strayed from the path have strayed have strengthened have stressed the importance have stressed the need have stressed have stretched have strict requirements have strict rules have strictly have stripped have striven have strong feelings have strong research have strongly to have struck have struck have struggled to find have struggled have stuck have students choose have students compare have students create have students depict have students explain have students identify have students read have students select have students use have students write have studied abroad have studied it have studied them to have studied have studied have stuff to do have stuff have stumbled have stunted have style have submerged have submitted observations have submitted have subscribed have subsequently have subsided have substantially have substituted have subtitles have succeeded in creating have succeeded in have succeeded where have succeeded to have succeeded have successfully completed have successfully implemented have successfully integrated have successfully used have successfully to have success have succumbed have such a problem have such effects have such knowledge have such power have such problems have suddenly become have suddenly have suffered as a result have suffered damage have suffered enough have suffered from have suffered greatly have suffered more have suffered persecution have suffered the effects have suffered violence to have suffered have suffered have sufficed have sufficient capacity have sufficient energy have sufficient experience have sufficient financial resources have sufficient flexibility have sufficient funding have sufficient income have sufficient information have sufficient knowledge have sufficient means have sufficient resources have sufficient space have sufficient strength have sufficient time have suffocated have suggested it have suggested that it have suggested have suicidal thoughts have summarized have summoned have sung have sunk have sunscreen have super powers have superpowers to have supper have supplied have supported me have supported the proposal have supported this initiative have supported us have supported have support have supposed have suppressed have surfaced have surfed have surgery to have surgery have surmised have surpassed have surprised have surrendered have surrounded the city have surrounded have surveillance cameras have survived only have survived to have survived have suspected something have suspected have suspended have suspicions have sustained have swallowed it have swallowed have swapped have sweated have sweet dreams have swept have swiped have switched have swollen have sworn allegiance have sworn an oath have sworn i heard have sworn it have sworn to protect have sworn have swum have swung have sympathy have symptoms have synced have synchronized have synthesised have synthesized have systematically have tabled amendments have tabled have tackled have tainted have taken a bullet have taken a cab have taken a picture have taken a step have taken action have taken advantage have taken an oath have taken away have taken back have taken care have taken control have taken enough have taken every precaution have taken everything have taken half have taken him have taken initiatives have taken into account have taken it have taken measures have taken me have taken months have taken more have taken note have taken nothing have taken one have taken out have taken over the city have taken over the world